1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright (C) 1990-2020 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
22 /* Most of this hacked by Steve Chamberlain,
28 BFD supports a number of different flavours of coff format.
29 The major differences between formats are the sizes and
30 alignments of fields in structures on disk, and the occasional
33 Coff in all its varieties is implemented with a few common
34 files and a number of implementation specific files. For
35 example, the i386 coff format is implemented in the file
36 @file{coff-i386.c}. This file @code{#include}s
37 @file{coff/i386.h} which defines the external structure of the
38 coff format for the i386, and @file{coff/internal.h} which
39 defines the internal structure. @file{coff-i386.c} also
40 defines the relocations used by the i386 coff format
44 Porting to a new version of coff
46 The recommended method is to select from the existing
47 implementations the version of coff which is most like the one
48 you want to use. For example, we'll say that i386 coff is
49 the one you select, and that your coff flavour is called foo.
50 Copy @file{i386coff.c} to @file{foocoff.c}, copy
51 @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
52 and add the lines to @file{targets.c} and @file{Makefile.in}
53 so that your new back end is used. Alter the shapes of the
54 structures in @file{../include/coff/foo.h} so that they match
55 what you need. You will probably also have to add
56 @code{#ifdef}s to the code in @file{coff/internal.h} and
57 @file{coffcode.h} if your version of coff is too wild.
59 You can verify that your new BFD backend works quite simply by
60 building @file{objdump} from the @file{binutils} directory,
61 and making sure that its version of what's going on and your
62 host system's idea (assuming it has the pretty standard coff
63 dump utility, usually called @code{att-dump} or just
64 @code{dump}) are the same. Then clean up your code, and send
65 what you've done to Cygnus. Then your stuff will be in the
66 next release, and you won't have to keep integrating it.
69 How the coff backend works
74 The Coff backend is split into generic routines that are
75 applicable to any Coff target and routines that are specific
76 to a particular target. The target-specific routines are
77 further split into ones which are basically the same for all
78 Coff targets except that they use the external symbol format
79 or use different values for certain constants.
81 The generic routines are in @file{coffgen.c}. These routines
82 work for any Coff target. They use some hooks into the target
83 specific code; the hooks are in a @code{bfd_coff_backend_data}
84 structure, one of which exists for each target.
86 The essentially similar target-specific routines are in
87 @file{coffcode.h}. This header file includes executable C code.
88 The various Coff targets first include the appropriate Coff
89 header file, make any special defines that are needed, and
90 then include @file{coffcode.h}.
92 Some of the Coff targets then also have additional routines in
93 the target source file itself.
96 Coff long section names
98 In the standard Coff object format, section names are limited to
99 the eight bytes available in the @code{s_name} field of the
100 @code{SCNHDR} section header structure. The format requires the
101 field to be NUL-padded, but not necessarily NUL-terminated, so
102 the longest section names permitted are a full eight characters.
104 The Microsoft PE variants of the Coff object file format add
105 an extension to support the use of long section names. This
106 extension is defined in section 4 of the Microsoft PE/COFF
107 specification (rev 8.1). If a section name is too long to fit
108 into the section header's @code{s_name} field, it is instead
109 placed into the string table, and the @code{s_name} field is
110 filled with a slash ("/") followed by the ASCII decimal
111 representation of the offset of the full name relative to the
114 Note that this implies that the extension can only be used in object
115 files, as executables do not contain a string table. The standard
116 specifies that long section names from objects emitted into executable
117 images are to be truncated.
119 However, as a GNU extension, BFD can generate executable images
120 that contain a string table and long section names. This
121 would appear to be technically valid, as the standard only says
122 that Coff debugging information is deprecated, not forbidden,
123 and in practice it works, although some tools that parse PE files
124 expecting the MS standard format may become confused; @file{PEview} is
127 The functionality is supported in BFD by code implemented under
128 the control of the macro @code{COFF_LONG_SECTION_NAMES}. If not
129 defined, the format does not support long section names in any way.
130 If defined, it is used to initialise a flag,
131 @code{_bfd_coff_long_section_names}, and a hook function pointer,
132 @code{_bfd_coff_set_long_section_names}, in the Coff backend data
133 structure. The flag controls the generation of long section names
134 in output BFDs at runtime; if it is false, as it will be by default
135 when generating an executable image, long section names are truncated;
136 if true, the long section names extension is employed. The hook
137 points to a function that allows the value of the flag to be altered
138 at runtime, on formats that support long section names at all; on
139 other formats it points to a stub that returns an error indication.
141 With input BFDs, the flag is set according to whether any long section
142 names are detected while reading the section headers. For a completely
143 new BFD, the flag is set to the default for the target format. This
144 information can be used by a client of the BFD library when deciding
145 what output format to generate, and means that a BFD that is opened
146 for read and subsequently converted to a writeable BFD and modified
147 in-place will retain whatever format it had on input.
149 If @code{COFF_LONG_SECTION_NAMES} is simply defined (blank), or is
150 defined to the value "1", then long section names are enabled by
151 default; if it is defined to the value zero, they are disabled by
152 default (but still accepted in input BFDs). The header @file{coffcode.h}
153 defines a macro, @code{COFF_DEFAULT_LONG_SECTION_NAMES}, which is
154 used in the backends to initialise the backend data structure fields
155 appropriately; see the comments for further detail.
160 Each flavour of coff supported in BFD has its own header file
161 describing the external layout of the structures. There is also
162 an internal description of the coff layout, in
163 @file{coff/internal.h}. A major function of the
164 coff backend is swapping the bytes and twiddling the bits to
165 translate the external form of the structures into the normal
166 internal form. This is all performed in the
167 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
168 elements are different sizes between different versions of
169 coff; it is the duty of the coff version specific include file
170 to override the definitions of various packing routines in
171 @file{coffcode.h}. E.g., the size of line number entry in coff is
172 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
173 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
174 correct one. No doubt, some day someone will find a version of
175 coff which has a varying field size not catered to at the
176 moment. To port BFD, that person will have to add more @code{#defines}.
177 Three of the bit twiddling routines are exported to
178 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
179 and @code{coff_swap_lineno_in}. @code{GDB} reads the symbol
180 table on its own, but uses BFD to fix things up. More of the
181 bit twiddlers are exported for @code{gas};
182 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
183 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
184 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
185 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
186 of all the symbol table and reloc drudgery itself, thereby
187 saving the internal BFD overhead, but uses BFD to swap things
188 on the way out, making cross ports much safer. Doing so also
189 allows BFD (and thus the linker) to use the same header files
190 as @code{gas}, which makes one avenue to disaster disappear.
195 The simple canonical form for symbols used by BFD is not rich
196 enough to keep all the information available in a coff symbol
197 table. The back end gets around this problem by keeping the original
198 symbol table around, "behind the scenes".
200 When a symbol table is requested (through a call to
201 @code{bfd_canonicalize_symtab}), a request gets through to
202 @code{coff_get_normalized_symtab}. This reads the symbol table from
203 the coff file and swaps all the structures inside into the
204 internal form. It also fixes up all the pointers in the table
205 (represented in the file by offsets from the first symbol in
206 the table) into physical pointers to elements in the new
207 internal table. This involves some work since the meanings of
208 fields change depending upon context: a field that is a
209 pointer to another structure in the symbol table at one moment
210 may be the size in bytes of a structure at the next. Another
211 pass is made over the table. All symbols which mark file names
212 (<<C_FILE>> symbols) are modified so that the internal
213 string points to the value in the auxent (the real filename)
214 rather than the normal text associated with the symbol
217 At this time the symbol names are moved around. Coff stores
218 all symbols less than nine characters long physically
219 within the symbol table; longer strings are kept at the end of
220 the file in the string table. This pass moves all strings
221 into memory and replaces them with pointers to the strings.
223 The symbol table is massaged once again, this time to create
224 the canonical table used by the BFD application. Each symbol
225 is inspected in turn, and a decision made (using the
226 @code{sclass} field) about the various flags to set in the
227 @code{asymbol}. @xref{Symbols}. The generated canonical table
228 shares strings with the hidden internal symbol table.
230 Any linenumbers are read from the coff file too, and attached
231 to the symbols which own the functions the linenumbers belong to.
236 Writing a symbol to a coff file which didn't come from a coff
237 file will lose any debugging information. The @code{asymbol}
238 structure remembers the BFD from which the symbol was taken, and on
239 output the back end makes sure that the same destination target as
240 source target is present.
242 When the symbols have come from a coff file then all the
243 debugging information is preserved.
245 Symbol tables are provided for writing to the back end in a
246 vector of pointers to pointers. This allows applications like
247 the linker to accumulate and output large symbol tables
248 without having to do too much byte copying.
250 This function runs through the provided symbol table and
251 patches each symbol marked as a file place holder
252 (@code{C_FILE}) to point to the next file place holder in the
253 list. It also marks each @code{offset} field in the list with
254 the offset from the first symbol of the current symbol.
256 Another function of this procedure is to turn the canonical
257 value form of BFD into the form used by coff. Internally, BFD
258 expects symbol values to be offsets from a section base; so a
259 symbol physically at 0x120, but in a section starting at
260 0x100, would have the value 0x20. Coff expects symbols to
261 contain their final value, so symbols have their values
262 changed at this point to reflect their sum with their owning
263 section. This transformation uses the
264 <<output_section>> field of the @code{asymbol}'s
265 @code{asection} @xref{Sections}.
267 o <<coff_mangle_symbols>>
269 This routine runs though the provided symbol table and uses
270 the offsets generated by the previous pass and the pointers
271 generated when the symbol table was read in to create the
272 structured hierarchy required by coff. It changes each pointer
273 to a symbol into the index into the symbol table of the asymbol.
275 o <<coff_write_symbols>>
277 This routine runs through the symbol table and patches up the
278 symbols from their internal form into the coff way, calls the
279 bit twiddlers, and writes out the table to the file.
288 The hidden information for an <<asymbol>> is described in a
289 <<combined_entry_type>>:
293 .typedef struct coff_ptr_struct
295 . {* Remembers the offset from the first symbol in the file for
296 . this symbol. Generated by coff_renumber_symbols. *}
297 . unsigned int offset;
299 . {* Should the value of this symbol be renumbered. Used for
300 . XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
301 . unsigned int fix_value : 1;
303 . {* Should the tag field of this symbol be renumbered.
304 . Created by coff_pointerize_aux. *}
305 . unsigned int fix_tag : 1;
307 . {* Should the endidx field of this symbol be renumbered.
308 . Created by coff_pointerize_aux. *}
309 . unsigned int fix_end : 1;
311 . {* Should the x_csect.x_scnlen field be renumbered.
312 . Created by coff_pointerize_aux. *}
313 . unsigned int fix_scnlen : 1;
315 . {* Fix up an XCOFF C_BINCL/C_EINCL symbol. The value is the
316 . index into the line number entries. Set by coff_slurp_symbol_table. *}
317 . unsigned int fix_line : 1;
319 . {* The container for the symbol structure as read and translated
323 . union internal_auxent auxent;
324 . struct internal_syment syment;
327 . {* Selector for the union above. *}
328 . bfd_boolean is_sym;
329 .} combined_entry_type;
332 .{* Each canonical asymbol really looks like this: *}
334 .typedef struct coff_symbol_struct
336 . {* The actual symbol which the rest of BFD works with *}
339 . {* A pointer to the hidden information for this symbol *}
340 . combined_entry_type *native;
342 . {* A pointer to the linenumber information for this symbol *}
343 . struct lineno_cache_entry *lineno;
345 . {* Have the line numbers been relocated yet ? *}
346 . bfd_boolean done_lineno;
351 #include "libiberty.h"
356 #include "coffswap.h"
359 #define STRING_SIZE_SIZE 4
361 #define DOT_DEBUG ".debug"
362 #define DOT_ZDEBUG ".zdebug"
363 #define GNU_LINKONCE_WI ".gnu.linkonce.wi."
364 #define GNU_LINKONCE_WT ".gnu.linkonce.wt."
365 #define DOT_RELOC ".reloc"
367 #if defined (COFF_LONG_SECTION_NAMES)
368 /* Needed to expand the inputs to BLANKOR1TOODD. */
369 #define COFFLONGSECTIONCATHELPER(x,y) x ## y
370 /* If the input macro Y is blank or '1', return an odd number; if it is
371 '0', return an even number. Result undefined in all other cases. */
372 #define BLANKOR1TOODD(y) COFFLONGSECTIONCATHELPER(1,y)
373 /* Defined to numerical 0 or 1 according to whether generation of long
374 section names is disabled or enabled by default. */
375 #define COFF_ENABLE_LONG_SECTION_NAMES (BLANKOR1TOODD(COFF_LONG_SECTION_NAMES) & 1)
376 /* Where long section names are supported, we allow them to be enabled
377 and disabled at runtime, so select an appropriate hook function for
378 _bfd_coff_set_long_section_names. */
379 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_allowed
380 #else /* !defined (COFF_LONG_SECTION_NAMES) */
381 /* If long section names are not supported, this stub disallows any
382 attempt to enable them at run-time. */
383 #define COFF_LONG_SECTION_NAMES_SETTER bfd_coff_set_long_section_names_disallowed
384 #endif /* defined (COFF_LONG_SECTION_NAMES) */
386 /* Define a macro that can be used to initialise both the fields relating
387 to long section names in the backend data struct simultaneously. */
388 #if COFF_ENABLE_LONG_SECTION_NAMES
389 #define COFF_DEFAULT_LONG_SECTION_NAMES (TRUE), COFF_LONG_SECTION_NAMES_SETTER
390 #else /* !COFF_ENABLE_LONG_SECTION_NAMES */
391 #define COFF_DEFAULT_LONG_SECTION_NAMES (FALSE), COFF_LONG_SECTION_NAMES_SETTER
392 #endif /* COFF_ENABLE_LONG_SECTION_NAMES */
394 #if defined (COFF_LONG_SECTION_NAMES)
395 static bfd_boolean bfd_coff_set_long_section_names_allowed
397 #else /* !defined (COFF_LONG_SECTION_NAMES) */
398 static bfd_boolean bfd_coff_set_long_section_names_disallowed
400 #endif /* defined (COFF_LONG_SECTION_NAMES) */
401 static long sec_to_styp_flags
402 (const char *, flagword
);
403 static bfd_boolean styp_to_sec_flags
404 (bfd
*, void *, const char *, asection
*, flagword
*);
405 static bfd_boolean coff_bad_format_hook
407 static void coff_set_custom_section_alignment
408 (bfd
*, asection
*, const struct coff_section_alignment_entry
*,
410 static bfd_boolean coff_new_section_hook
412 static bfd_boolean coff_set_arch_mach_hook
414 static bfd_boolean coff_write_relocs
416 static bfd_boolean coff_set_flags
417 (bfd
*, unsigned int *, unsigned short *);
418 static bfd_boolean coff_set_arch_mach
419 (bfd
*, enum bfd_architecture
, unsigned long) ATTRIBUTE_UNUSED
;
420 static bfd_boolean coff_compute_section_file_positions
422 static bfd_boolean coff_write_object_contents
423 (bfd
*) ATTRIBUTE_UNUSED
;
424 static bfd_boolean coff_set_section_contents
425 (bfd
*, asection
*, const void *, file_ptr
, bfd_size_type
);
426 static bfd_boolean coff_slurp_line_table
428 static bfd_boolean coff_slurp_symbol_table
430 static enum coff_symbol_classification coff_classify_symbol
431 (bfd
*, struct internal_syment
*);
432 static bfd_boolean coff_slurp_reloc_table
433 (bfd
*, asection
*, asymbol
**);
434 static long coff_canonicalize_reloc
435 (bfd
*, asection
*, arelent
**, asymbol
**);
436 #ifndef coff_mkobject_hook
437 static void * coff_mkobject_hook
438 (bfd
*, void *, void *);
441 static flagword handle_COMDAT
442 (bfd
*, flagword
, void *, const char *, asection
*);
444 #ifdef COFF_IMAGE_WITH_PE
445 static bfd_boolean coff_read_word
446 (bfd
*, unsigned int *);
447 static unsigned int coff_compute_checksum
449 static bfd_boolean coff_apply_checksum
453 static bfd_boolean ticoff0_bad_format_hook
455 static bfd_boolean ticoff1_bad_format_hook
459 /* void warning(); */
461 #if defined (COFF_LONG_SECTION_NAMES)
463 bfd_coff_set_long_section_names_allowed (bfd
*abfd
, int enable
)
465 coff_backend_info (abfd
)->_bfd_coff_long_section_names
= enable
;
468 #else /* !defined (COFF_LONG_SECTION_NAMES) */
470 bfd_coff_set_long_section_names_disallowed (bfd
*abfd
, int enable
)
476 #endif /* defined (COFF_LONG_SECTION_NAMES) */
478 /* Return a word with STYP_* (scnhdr.s_flags) flags set to represent
479 the incoming SEC_* flags. The inverse of this function is
480 styp_to_sec_flags(). NOTE: If you add to/change this routine, you
481 should probably mirror the changes in styp_to_sec_flags(). */
485 /* Macros for setting debugging flags. */
488 #define STYP_XCOFF_DEBUG STYP_DEBUG
490 #define STYP_XCOFF_DEBUG STYP_INFO
493 #ifdef COFF_ALIGN_IN_S_FLAGS
494 #define STYP_DEBUG_INFO STYP_DSECT
496 #define STYP_DEBUG_INFO STYP_INFO
500 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
504 if (!strcmp (sec_name
, _TEXT
))
506 styp_flags
= STYP_TEXT
;
508 else if (!strcmp (sec_name
, _DATA
))
510 styp_flags
= STYP_DATA
;
512 else if (!strcmp (sec_name
, _BSS
))
514 styp_flags
= STYP_BSS
;
517 else if (!strcmp (sec_name
, _COMMENT
))
519 styp_flags
= STYP_INFO
;
520 #endif /* _COMMENT */
523 else if (!strcmp (sec_name
, _LIB
))
525 styp_flags
= STYP_LIB
;
529 else if (!strcmp (sec_name
, _LIT
))
531 styp_flags
= STYP_LIT
;
534 else if (CONST_STRNEQ (sec_name
, DOT_DEBUG
)
535 || CONST_STRNEQ (sec_name
, DOT_ZDEBUG
))
537 /* Handle the XCOFF debug section and DWARF2 debug sections. */
539 styp_flags
= STYP_XCOFF_DEBUG
;
541 styp_flags
= STYP_DEBUG_INFO
;
543 else if (CONST_STRNEQ (sec_name
, ".stab"))
545 styp_flags
= STYP_DEBUG_INFO
;
547 #ifdef COFF_LONG_SECTION_NAMES
548 else if (CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
)
549 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WT
))
551 styp_flags
= STYP_DEBUG_INFO
;
555 else if (!strcmp (sec_name
, _PAD
))
557 styp_flags
= STYP_PAD
;
559 else if (!strcmp (sec_name
, _LOADER
))
561 styp_flags
= STYP_LOADER
;
563 else if (!strcmp (sec_name
, _EXCEPT
))
565 styp_flags
= STYP_EXCEPT
;
567 else if (!strcmp (sec_name
, _TYPCHK
))
569 styp_flags
= STYP_TYPCHK
;
571 else if (sec_flags
& SEC_DEBUGGING
)
575 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
576 if (!strcmp (sec_name
, xcoff_dwsect_names
[i
].name
))
578 styp_flags
= STYP_DWARF
| xcoff_dwsect_names
[i
].flag
;
583 /* Try and figure out what it should be */
584 else if (sec_flags
& SEC_CODE
)
586 styp_flags
= STYP_TEXT
;
588 else if (sec_flags
& SEC_DATA
)
590 styp_flags
= STYP_DATA
;
592 else if (sec_flags
& SEC_READONLY
)
594 #ifdef STYP_LIT /* 29k readonly text/data section */
595 styp_flags
= STYP_LIT
;
597 styp_flags
= STYP_TEXT
;
598 #endif /* STYP_LIT */
600 else if (sec_flags
& SEC_LOAD
)
602 styp_flags
= STYP_TEXT
;
604 else if (sec_flags
& SEC_ALLOC
)
606 styp_flags
= STYP_BSS
;
610 if (sec_flags
& SEC_TIC54X_CLINK
)
611 styp_flags
|= STYP_CLINK
;
615 if (sec_flags
& SEC_TIC54X_BLOCK
)
616 styp_flags
|= STYP_BLOCK
;
620 if ((sec_flags
& (SEC_NEVER_LOAD
| SEC_COFF_SHARED_LIBRARY
)) != 0)
621 styp_flags
|= STYP_NOLOAD
;
627 #else /* COFF_WITH_PE */
629 /* The PE version; see above for the general comments. The non-PE
630 case seems to be more guessing, and breaks PE format; specifically,
631 .rdata is readonly, but it sure ain't text. Really, all this
632 should be set up properly in gas (or whatever assembler is in use),
633 and honor whatever objcopy/strip, etc. sent us as input. */
636 sec_to_styp_flags (const char *sec_name
, flagword sec_flags
)
639 bfd_boolean is_dbg
= FALSE
;
641 if (CONST_STRNEQ (sec_name
, DOT_DEBUG
)
642 || CONST_STRNEQ (sec_name
, DOT_ZDEBUG
)
643 #ifdef COFF_LONG_SECTION_NAMES
644 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WI
)
645 || CONST_STRNEQ (sec_name
, GNU_LINKONCE_WT
)
647 || CONST_STRNEQ (sec_name
, ".stab"))
650 /* caution: there are at least three groups of symbols that have
651 very similar bits and meanings: IMAGE_SCN*, SEC_*, and STYP_*.
652 SEC_* are the BFD internal flags, used for generic BFD
653 information. STYP_* are the COFF section flags which appear in
654 COFF files. IMAGE_SCN_* are the PE section flags which appear in
655 PE files. The STYP_* flags and the IMAGE_SCN_* flags overlap,
656 but there are more IMAGE_SCN_* flags. */
658 /* FIXME: There is no gas syntax to specify the debug section flag. */
661 sec_flags
&= (SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
662 | SEC_LINK_DUPLICATES_SAME_CONTENTS
663 | SEC_LINK_DUPLICATES_SAME_SIZE
);
664 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
670 if ((sec_flags
& SEC_CODE
) != 0)
671 styp_flags
|= IMAGE_SCN_CNT_CODE
;
672 if ((sec_flags
& (SEC_DATA
| SEC_DEBUGGING
)) != 0)
673 styp_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
674 if ((sec_flags
& SEC_ALLOC
) != 0 && (sec_flags
& SEC_LOAD
) == 0)
675 styp_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
; /* ==STYP_BSS */
677 /* skip constRUCTOR */
679 if ((sec_flags
& SEC_IS_COMMON
) != 0)
680 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
681 if ((sec_flags
& SEC_DEBUGGING
) != 0)
682 styp_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
683 if ((sec_flags
& SEC_EXCLUDE
) != 0 && !is_dbg
)
684 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
685 if ((sec_flags
& SEC_NEVER_LOAD
) != 0 && !is_dbg
)
686 styp_flags
|= IMAGE_SCN_LNK_REMOVE
;
689 if (sec_flags
& SEC_LINK_ONCE
)
690 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
692 & (SEC_LINK_DUPLICATES_DISCARD
| SEC_LINK_DUPLICATES_SAME_CONTENTS
693 | SEC_LINK_DUPLICATES_SAME_SIZE
)) != 0)
694 styp_flags
|= IMAGE_SCN_LNK_COMDAT
;
696 /* skip LINKER_CREATED */
698 if ((sec_flags
& SEC_COFF_NOREAD
) == 0)
699 styp_flags
|= IMAGE_SCN_MEM_READ
; /* Invert NOREAD for read. */
700 if ((sec_flags
& SEC_READONLY
) == 0)
701 styp_flags
|= IMAGE_SCN_MEM_WRITE
; /* Invert READONLY for write. */
702 if (sec_flags
& SEC_CODE
)
703 styp_flags
|= IMAGE_SCN_MEM_EXECUTE
; /* CODE->EXECUTE. */
704 if (sec_flags
& SEC_COFF_SHARED
)
705 styp_flags
|= IMAGE_SCN_MEM_SHARED
; /* Shared remains meaningful. */
710 #endif /* COFF_WITH_PE */
712 /* Return a word with SEC_* flags set to represent the incoming STYP_*
713 flags (from scnhdr.s_flags). The inverse of this function is
714 sec_to_styp_flags(). NOTE: If you add to/change this routine, you
715 should probably mirror the changes in sec_to_styp_flags(). */
720 styp_to_sec_flags (bfd
*abfd ATTRIBUTE_UNUSED
,
723 asection
*section ATTRIBUTE_UNUSED
,
726 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
727 long styp_flags
= internal_s
->s_flags
;
728 flagword sec_flags
= 0;
731 if (styp_flags
& STYP_BLOCK
)
732 sec_flags
|= SEC_TIC54X_BLOCK
;
736 if (styp_flags
& STYP_CLINK
)
737 sec_flags
|= SEC_TIC54X_CLINK
;
741 if (styp_flags
& STYP_NOLOAD
)
742 sec_flags
|= SEC_NEVER_LOAD
;
743 #endif /* STYP_NOLOAD */
745 /* For 386 COFF, at least, an unloadable text or data section is
746 actually a shared library section. */
747 if (styp_flags
& STYP_TEXT
)
749 if (sec_flags
& SEC_NEVER_LOAD
)
750 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
752 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
754 else if (styp_flags
& STYP_DATA
)
756 if (sec_flags
& SEC_NEVER_LOAD
)
757 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
759 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
761 else if (styp_flags
& STYP_BSS
)
763 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
764 if (sec_flags
& SEC_NEVER_LOAD
)
765 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
768 sec_flags
|= SEC_ALLOC
;
770 else if (styp_flags
& STYP_INFO
)
772 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
773 defined. coff_compute_section_file_positions uses
774 COFF_PAGE_SIZE to ensure that the low order bits of the
775 section VMA and the file offset match. If we don't know
776 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
777 and demand page loading of the file will fail. */
778 #if defined (COFF_PAGE_SIZE) && !defined (COFF_ALIGN_IN_S_FLAGS)
779 sec_flags
|= SEC_DEBUGGING
;
782 else if (styp_flags
& STYP_PAD
)
785 else if (styp_flags
& STYP_EXCEPT
)
786 sec_flags
|= SEC_LOAD
;
787 else if (styp_flags
& STYP_LOADER
)
788 sec_flags
|= SEC_LOAD
;
789 else if (styp_flags
& STYP_TYPCHK
)
790 sec_flags
|= SEC_LOAD
;
791 else if (styp_flags
& STYP_DWARF
)
792 sec_flags
|= SEC_DEBUGGING
;
794 else if (strcmp (name
, _TEXT
) == 0)
796 if (sec_flags
& SEC_NEVER_LOAD
)
797 sec_flags
|= SEC_CODE
| SEC_COFF_SHARED_LIBRARY
;
799 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
801 else if (strcmp (name
, _DATA
) == 0)
803 if (sec_flags
& SEC_NEVER_LOAD
)
804 sec_flags
|= SEC_DATA
| SEC_COFF_SHARED_LIBRARY
;
806 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
808 else if (strcmp (name
, _BSS
) == 0)
810 #ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
811 if (sec_flags
& SEC_NEVER_LOAD
)
812 sec_flags
|= SEC_ALLOC
| SEC_COFF_SHARED_LIBRARY
;
815 sec_flags
|= SEC_ALLOC
;
817 else if (CONST_STRNEQ (name
, DOT_DEBUG
)
818 || CONST_STRNEQ (name
, DOT_ZDEBUG
)
820 || strcmp (name
, _COMMENT
) == 0
822 #ifdef COFF_LONG_SECTION_NAMES
823 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
824 || CONST_STRNEQ (name
, GNU_LINKONCE_WT
)
826 || CONST_STRNEQ (name
, ".stab"))
828 #ifdef COFF_PAGE_SIZE
829 sec_flags
|= SEC_DEBUGGING
;
833 else if (strcmp (name
, _LIB
) == 0)
837 else if (strcmp (name
, _LIT
) == 0)
838 sec_flags
= SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
;
841 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
843 #ifdef STYP_LIT /* A29k readonly text/data section type. */
844 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
845 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
846 #endif /* STYP_LIT */
848 #ifdef STYP_OTHER_LOAD /* Other loaded sections. */
849 if (styp_flags
& STYP_OTHER_LOAD
)
850 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
851 #endif /* STYP_SDATA */
853 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
854 /* As a GNU extension, if the name begins with .gnu.linkonce, we
855 only link a single copy of the section. This is used to support
856 g++. g++ will emit each template expansion in its own section.
857 The symbols will be defined as weak, so that multiple definitions
858 are permitted. The GNU linker extension is to actually discard
859 all but one of the sections. */
860 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
861 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
864 if (flags_ptr
== NULL
)
867 * flags_ptr
= sec_flags
;
871 #else /* COFF_WITH_PE */
874 handle_COMDAT (bfd
* abfd
,
880 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
881 bfd_byte
*esymstart
, *esym
, *esymend
;
883 char *target_name
= NULL
;
885 sec_flags
|= SEC_LINK_ONCE
;
887 /* Unfortunately, the PE format stores essential information in
888 the symbol table, of all places. We need to extract that
889 information now, so that objdump and the linker will know how
890 to handle the section without worrying about the symbols. We
891 can't call slurp_symtab, because the linker doesn't want the
894 /* COMDAT sections are special. The first symbol is the section
895 symbol, which tells what kind of COMDAT section it is. The
896 second symbol is the "comdat symbol" - the one with the
897 unique name. GNU uses the section symbol for the unique
898 name; MS uses ".text" for every comdat section. Sigh. - DJ */
900 /* This is not mirrored in sec_to_styp_flags(), but there
901 doesn't seem to be a need to, either, and it would at best be
904 if (! _bfd_coff_get_external_symbols (abfd
))
907 esymstart
= esym
= (bfd_byte
*) obj_coff_external_syms (abfd
);
908 esymend
= esym
+ obj_raw_syment_count (abfd
) * bfd_coff_symesz (abfd
);
910 while (esym
< esymend
)
912 struct internal_syment isym
;
913 char buf
[SYMNMLEN
+ 1];
916 bfd_coff_swap_sym_in (abfd
, esym
, & isym
);
918 BFD_ASSERT (sizeof (internal_s
->s_name
) <= SYMNMLEN
);
920 if (isym
.n_scnum
== section
->target_index
)
922 /* According to the MSVC documentation, the first
923 TWO entries with the section # are both of
924 interest to us. The first one is the "section
925 symbol" (section name). The second is the comdat
926 symbol name. Here, we've found the first
927 qualifying entry; we distinguish it from the
928 second with a state flag.
930 In the case of gas-generated (at least until that
931 is fixed) .o files, it isn't necessarily the
932 second one. It may be some other later symbol.
934 Since gas also doesn't follow MS conventions and
935 emits the section similar to .text$<name>, where
936 <something> is the name we're looking for, we
937 distinguish the two as follows:
939 If the section name is simply a section name (no
940 $) we presume it's MS-generated, and look at
941 precisely the second symbol for the comdat name.
942 If the section name has a $, we assume it's
943 gas-generated, and look for <something> (whatever
944 follows the $) as the comdat symbol. */
946 /* All 3 branches use this. */
947 symname
= _bfd_coff_internal_syment_name (abfd
, &isym
, buf
);
949 /* PR 17512 file: 078-11867-0.004 */
952 _bfd_error_handler (_("%pB: unable to load COMDAT section name"),
961 /* The first time we've seen the symbol. */
962 union internal_auxent aux
;
964 /* If it isn't the stuff we're expecting, die;
965 The MS documentation is vague, but it
966 appears that the second entry serves BOTH
967 as the comdat symbol and the defining
968 symbol record (either C_STAT or C_EXT,
969 possibly with an aux entry with debug
970 information if it's a function.) It
971 appears the only way to find the second one
972 is to count. (On Intel, they appear to be
973 adjacent, but on Alpha, they have been
976 Here, we think we've found the first one,
977 but there's some checking we can do to be
980 if (! ((isym
.n_sclass
== C_STAT
981 || isym
.n_sclass
== C_EXT
)
982 && BTYPE (isym
.n_type
) == T_NULL
983 && isym
.n_value
== 0))
985 /* Malformed input files can trigger this test.
987 _bfd_error_handler (_("%pB: error: unexpected symbol '%s' in COMDAT section"),
992 /* FIXME LATER: MSVC generates section names
993 like .text for comdats. Gas generates
994 names like .text$foo__Fv (in the case of a
995 function). See comment above for more. */
997 if (isym
.n_sclass
== C_STAT
&& strcmp (name
, symname
) != 0)
998 /* xgettext:c-format */
999 _bfd_error_handler (_("%pB: warning: COMDAT symbol '%s'"
1000 " does not match section name '%s'"),
1001 abfd
, symname
, name
);
1005 /* PR 17512: file: e2cfe54f. */
1006 if (esym
+ bfd_coff_symesz (abfd
) >= esymend
)
1008 /* xgettext:c-format */
1009 _bfd_error_handler (_("%pB: warning: no symbol for"
1010 " section '%s' found"),
1014 /* This is the section symbol. */
1015 bfd_coff_swap_aux_in (abfd
, (esym
+ bfd_coff_symesz (abfd
)),
1016 isym
.n_type
, isym
.n_sclass
,
1017 0, isym
.n_numaux
, & aux
);
1019 target_name
= strchr (name
, '$');
1020 if (target_name
!= NULL
)
1028 /* FIXME: Microsoft uses NODUPLICATES and
1029 ASSOCIATIVE, but gnu uses ANY and
1030 SAME_SIZE. Unfortunately, gnu doesn't do
1031 the comdat symbols right. So, until we can
1032 fix it to do the right thing, we are
1033 temporarily disabling comdats for the MS
1034 types (they're used in DLLs and C++, but we
1035 don't support *their* C++ libraries anyway
1038 /* Cygwin does not follow the MS style, and
1039 uses ANY and SAME_SIZE where NODUPLICATES
1040 and ASSOCIATIVE should be used. For
1041 Interix, we just do the right thing up
1044 switch (aux
.x_scn
.x_comdat
)
1046 case IMAGE_COMDAT_SELECT_NODUPLICATES
:
1047 #ifdef STRICT_PE_FORMAT
1048 sec_flags
|= SEC_LINK_DUPLICATES_ONE_ONLY
;
1050 sec_flags
&= ~SEC_LINK_ONCE
;
1054 case IMAGE_COMDAT_SELECT_ANY
:
1055 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1058 case IMAGE_COMDAT_SELECT_SAME_SIZE
:
1059 sec_flags
|= SEC_LINK_DUPLICATES_SAME_SIZE
;
1062 case IMAGE_COMDAT_SELECT_EXACT_MATCH
:
1063 /* Not yet fully implemented ??? */
1064 sec_flags
|= SEC_LINK_DUPLICATES_SAME_CONTENTS
;
1067 /* debug$S gets this case; other
1070 /* There may be no symbol... we'll search
1071 the whole table... Is this the right
1072 place to play this game? Or should we do
1073 it when reading it in. */
1074 case IMAGE_COMDAT_SELECT_ASSOCIATIVE
:
1075 #ifdef STRICT_PE_FORMAT
1076 /* FIXME: This is not currently implemented. */
1077 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1079 sec_flags
&= ~SEC_LINK_ONCE
;
1083 default: /* 0 means "no symbol" */
1084 /* debug$F gets this case; other
1086 sec_flags
|= SEC_LINK_DUPLICATES_DISCARD
;
1093 /* Gas mode: the first matching on partial name. */
1095 #ifndef TARGET_UNDERSCORE
1096 #define TARGET_UNDERSCORE 0
1098 /* Is this the name we're looking for ? */
1099 if (strcmp (target_name
,
1100 symname
+ (TARGET_UNDERSCORE
? 1 : 0)) != 0)
1102 /* Not the name we're looking for */
1103 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1108 /* MSVC mode: the lexically second symbol (or
1109 drop through from the above). */
1114 /* This must the second symbol with the
1115 section #. It is the actual symbol name.
1116 Intel puts the two adjacent, but Alpha (at
1117 least) spreads them out. */
1119 amt
= sizeof (struct coff_comdat_info
);
1120 coff_section_data (abfd
, section
)->comdat
1121 = (struct coff_comdat_info
*) bfd_alloc (abfd
, amt
);
1122 if (coff_section_data (abfd
, section
)->comdat
== NULL
)
1125 coff_section_data (abfd
, section
)->comdat
->symbol
=
1126 (esym
- esymstart
) / bfd_coff_symesz (abfd
);
1128 amt
= strlen (symname
) + 1;
1129 newname
= (char *) bfd_alloc (abfd
, amt
);
1130 if (newname
== NULL
)
1133 strcpy (newname
, symname
);
1134 coff_section_data (abfd
, section
)->comdat
->name
1142 esym
+= (isym
.n_numaux
+ 1) * bfd_coff_symesz (abfd
);
1150 /* The PE version; see above for the general comments.
1152 Since to set the SEC_LINK_ONCE and associated flags, we have to
1153 look at the symbol table anyway, we return the symbol table index
1154 of the symbol being used as the COMDAT symbol. This is admittedly
1155 ugly, but there's really nowhere else that we have access to the
1156 required information. FIXME: Is the COMDAT symbol index used for
1157 any purpose other than objdump? */
1160 styp_to_sec_flags (bfd
*abfd
,
1164 flagword
*flags_ptr
)
1166 struct internal_scnhdr
*internal_s
= (struct internal_scnhdr
*) hdr
;
1167 unsigned long styp_flags
= internal_s
->s_flags
;
1169 bfd_boolean result
= TRUE
;
1170 bfd_boolean is_dbg
= FALSE
;
1172 if (CONST_STRNEQ (name
, DOT_DEBUG
)
1173 || CONST_STRNEQ (name
, DOT_ZDEBUG
)
1174 #ifdef COFF_LONG_SECTION_NAMES
1175 || CONST_STRNEQ (name
, GNU_LINKONCE_WI
)
1176 || CONST_STRNEQ (name
, GNU_LINKONCE_WT
)
1177 /* FIXME: These definitions ought to be in a header file. */
1178 #define GNU_DEBUGLINK ".gnu_debuglink"
1179 #define GNU_DEBUGALTLINK ".gnu_debugaltlink"
1180 || CONST_STRNEQ (name
, GNU_DEBUGLINK
)
1181 || CONST_STRNEQ (name
, GNU_DEBUGALTLINK
)
1183 || CONST_STRNEQ (name
, ".stab"))
1185 /* Assume read only unless IMAGE_SCN_MEM_WRITE is specified. */
1186 sec_flags
= SEC_READONLY
;
1188 /* If section disallows read, then set the NOREAD flag. */
1189 if ((styp_flags
& IMAGE_SCN_MEM_READ
) == 0)
1190 sec_flags
|= SEC_COFF_NOREAD
;
1192 /* Process each flag bit in styp_flags in turn. */
1195 unsigned long flag
= styp_flags
& - styp_flags
;
1196 char * unhandled
= NULL
;
1198 styp_flags
&= ~ flag
;
1200 /* We infer from the distinct read/write/execute bits the settings
1201 of some of the bfd flags; the actual values, should we need them,
1202 are also in pei_section_data (abfd, section)->pe_flags. */
1207 unhandled
= "STYP_DSECT";
1210 unhandled
= "STYP_GROUP";
1213 unhandled
= "STYP_COPY";
1216 unhandled
= "STYP_OVER";
1218 #ifdef SEC_NEVER_LOAD
1220 sec_flags
|= SEC_NEVER_LOAD
;
1223 case IMAGE_SCN_MEM_READ
:
1224 sec_flags
&= ~SEC_COFF_NOREAD
;
1226 case IMAGE_SCN_TYPE_NO_PAD
:
1229 case IMAGE_SCN_LNK_OTHER
:
1230 unhandled
= "IMAGE_SCN_LNK_OTHER";
1232 case IMAGE_SCN_MEM_NOT_CACHED
:
1233 unhandled
= "IMAGE_SCN_MEM_NOT_CACHED";
1235 case IMAGE_SCN_MEM_NOT_PAGED
:
1236 /* Generate a warning message rather using the 'unhandled'
1237 variable as this will allow some .sys files generate by
1238 other toolchains to be processed. See bugzilla issue 196. */
1239 /* xgettext:c-format */
1240 _bfd_error_handler (_("%pB: warning: ignoring section flag"
1241 " %s in section %s"),
1242 abfd
, "IMAGE_SCN_MEM_NOT_PAGED", name
);
1244 case IMAGE_SCN_MEM_EXECUTE
:
1245 sec_flags
|= SEC_CODE
;
1247 case IMAGE_SCN_MEM_WRITE
:
1248 sec_flags
&= ~ SEC_READONLY
;
1250 case IMAGE_SCN_MEM_DISCARDABLE
:
1251 /* The MS PE spec says that debug sections are DISCARDABLE,
1252 but the presence of a DISCARDABLE flag does not necessarily
1253 mean that a given section contains debug information. Thus
1254 we only set the SEC_DEBUGGING flag on sections that we
1255 recognise as containing debug information. */
1258 || strcmp (name
, _COMMENT
) == 0
1262 sec_flags
|= SEC_DEBUGGING
| SEC_READONLY
;
1265 case IMAGE_SCN_MEM_SHARED
:
1266 sec_flags
|= SEC_COFF_SHARED
;
1268 case IMAGE_SCN_LNK_REMOVE
:
1270 sec_flags
|= SEC_EXCLUDE
;
1272 case IMAGE_SCN_CNT_CODE
:
1273 sec_flags
|= SEC_CODE
| SEC_ALLOC
| SEC_LOAD
;
1275 case IMAGE_SCN_CNT_INITIALIZED_DATA
:
1277 sec_flags
|= SEC_DEBUGGING
;
1279 sec_flags
|= SEC_DATA
| SEC_ALLOC
| SEC_LOAD
;
1281 case IMAGE_SCN_CNT_UNINITIALIZED_DATA
:
1282 sec_flags
|= SEC_ALLOC
;
1284 case IMAGE_SCN_LNK_INFO
:
1285 /* We mark these as SEC_DEBUGGING, but only if COFF_PAGE_SIZE is
1286 defined. coff_compute_section_file_positions uses
1287 COFF_PAGE_SIZE to ensure that the low order bits of the
1288 section VMA and the file offset match. If we don't know
1289 COFF_PAGE_SIZE, we can't ensure the correct correspondence,
1290 and demand page loading of the file will fail. */
1291 #ifdef COFF_PAGE_SIZE
1292 sec_flags
|= SEC_DEBUGGING
;
1295 case IMAGE_SCN_LNK_COMDAT
:
1296 /* COMDAT gets very special treatment. */
1297 sec_flags
= handle_COMDAT (abfd
, sec_flags
, hdr
, name
, section
);
1300 /* Silently ignore for now. */
1304 /* If the section flag was not handled, report it here. */
1305 if (unhandled
!= NULL
)
1308 /* xgettext:c-format */
1309 (_("%pB (%s): section flag %s (%#lx) ignored"),
1310 abfd
, name
, unhandled
, flag
);
1315 #if defined (COFF_LONG_SECTION_NAMES) && defined (COFF_SUPPORT_GNU_LINKONCE)
1316 /* As a GNU extension, if the name begins with .gnu.linkonce, we
1317 only link a single copy of the section. This is used to support
1318 g++. g++ will emit each template expansion in its own section.
1319 The symbols will be defined as weak, so that multiple definitions
1320 are permitted. The GNU linker extension is to actually discard
1321 all but one of the sections. */
1322 if (CONST_STRNEQ (name
, ".gnu.linkonce"))
1323 sec_flags
|= SEC_LINK_ONCE
| SEC_LINK_DUPLICATES_DISCARD
;
1327 * flags_ptr
= sec_flags
;
1332 #endif /* COFF_WITH_PE */
1334 #define get_index(symbol) ((symbol)->udata.i)
1338 bfd_coff_backend_data
1342 .{* COFF symbol classifications. *}
1344 .enum coff_symbol_classification
1346 . {* Global symbol. *}
1347 . COFF_SYMBOL_GLOBAL,
1348 . {* Common symbol. *}
1349 . COFF_SYMBOL_COMMON,
1350 . {* Undefined symbol. *}
1351 . COFF_SYMBOL_UNDEFINED,
1352 . {* Local symbol. *}
1353 . COFF_SYMBOL_LOCAL,
1354 . {* PE section symbol. *}
1355 . COFF_SYMBOL_PE_SECTION
1358 .typedef asection * (*coff_gc_mark_hook_fn)
1359 . (asection *, struct bfd_link_info *, struct internal_reloc *,
1360 . struct coff_link_hash_entry *, struct internal_syment *);
1362 Special entry points for gdb to swap in coff symbol table parts:
1365 . void (*_bfd_coff_swap_aux_in)
1366 . (bfd *, void *, int, int, int, int, void *);
1368 . void (*_bfd_coff_swap_sym_in)
1369 . (bfd *, void *, void *);
1371 . void (*_bfd_coff_swap_lineno_in)
1372 . (bfd *, void *, void *);
1374 . unsigned int (*_bfd_coff_swap_aux_out)
1375 . (bfd *, void *, int, int, int, int, void *);
1377 . unsigned int (*_bfd_coff_swap_sym_out)
1378 . (bfd *, void *, void *);
1380 . unsigned int (*_bfd_coff_swap_lineno_out)
1381 . (bfd *, void *, void *);
1383 . unsigned int (*_bfd_coff_swap_reloc_out)
1384 . (bfd *, void *, void *);
1386 . unsigned int (*_bfd_coff_swap_filehdr_out)
1387 . (bfd *, void *, void *);
1389 . unsigned int (*_bfd_coff_swap_aouthdr_out)
1390 . (bfd *, void *, void *);
1392 . unsigned int (*_bfd_coff_swap_scnhdr_out)
1393 . (bfd *, void *, void *);
1395 . unsigned int _bfd_filhsz;
1396 . unsigned int _bfd_aoutsz;
1397 . unsigned int _bfd_scnhsz;
1398 . unsigned int _bfd_symesz;
1399 . unsigned int _bfd_auxesz;
1400 . unsigned int _bfd_relsz;
1401 . unsigned int _bfd_linesz;
1402 . unsigned int _bfd_filnmlen;
1403 . bfd_boolean _bfd_coff_long_filenames;
1405 . bfd_boolean _bfd_coff_long_section_names;
1406 . bfd_boolean (*_bfd_coff_set_long_section_names)
1409 . unsigned int _bfd_coff_default_section_alignment_power;
1410 . bfd_boolean _bfd_coff_force_symnames_in_strings;
1411 . unsigned int _bfd_coff_debug_string_prefix_length;
1412 . unsigned int _bfd_coff_max_nscns;
1414 . void (*_bfd_coff_swap_filehdr_in)
1415 . (bfd *, void *, void *);
1417 . void (*_bfd_coff_swap_aouthdr_in)
1418 . (bfd *, void *, void *);
1420 . void (*_bfd_coff_swap_scnhdr_in)
1421 . (bfd *, void *, void *);
1423 . void (*_bfd_coff_swap_reloc_in)
1424 . (bfd *abfd, void *, void *);
1426 . bfd_boolean (*_bfd_coff_bad_format_hook)
1429 . bfd_boolean (*_bfd_coff_set_arch_mach_hook)
1432 . void * (*_bfd_coff_mkobject_hook)
1433 . (bfd *, void *, void *);
1435 . bfd_boolean (*_bfd_styp_to_sec_flags_hook)
1436 . (bfd *, void *, const char *, asection *, flagword *);
1438 . void (*_bfd_set_alignment_hook)
1439 . (bfd *, asection *, void *);
1441 . bfd_boolean (*_bfd_coff_slurp_symbol_table)
1444 . bfd_boolean (*_bfd_coff_symname_in_debug)
1445 . (bfd *, struct internal_syment *);
1447 . bfd_boolean (*_bfd_coff_pointerize_aux_hook)
1448 . (bfd *, combined_entry_type *, combined_entry_type *,
1449 . unsigned int, combined_entry_type *);
1451 . bfd_boolean (*_bfd_coff_print_aux)
1452 . (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
1453 . combined_entry_type *, unsigned int);
1455 . void (*_bfd_coff_reloc16_extra_cases)
1456 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
1457 . bfd_byte *, unsigned int *, unsigned int *);
1459 . int (*_bfd_coff_reloc16_estimate)
1460 . (bfd *, asection *, arelent *, unsigned int,
1461 . struct bfd_link_info *);
1463 . enum coff_symbol_classification (*_bfd_coff_classify_symbol)
1464 . (bfd *, struct internal_syment *);
1466 . bfd_boolean (*_bfd_coff_compute_section_file_positions)
1469 . bfd_boolean (*_bfd_coff_start_final_link)
1470 . (bfd *, struct bfd_link_info *);
1472 . bfd_boolean (*_bfd_coff_relocate_section)
1473 . (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
1474 . struct internal_reloc *, struct internal_syment *, asection **);
1476 . reloc_howto_type *(*_bfd_coff_rtype_to_howto)
1477 . (bfd *, asection *, struct internal_reloc *,
1478 . struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *);
1480 . bfd_boolean (*_bfd_coff_adjust_symndx)
1481 . (bfd *, struct bfd_link_info *, bfd *, asection *,
1482 . struct internal_reloc *, bfd_boolean *);
1484 . bfd_boolean (*_bfd_coff_link_add_one_symbol)
1485 . (struct bfd_link_info *, bfd *, const char *, flagword,
1486 . asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
1487 . struct bfd_link_hash_entry **);
1489 . bfd_boolean (*_bfd_coff_link_output_has_begun)
1490 . (bfd *, struct coff_final_link_info *);
1492 . bfd_boolean (*_bfd_coff_final_link_postscript)
1493 . (bfd *, struct coff_final_link_info *);
1495 . bfd_boolean (*_bfd_coff_print_pdata)
1498 .} bfd_coff_backend_data;
1500 .#define coff_backend_info(abfd) \
1501 . ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
1503 .#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
1504 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
1506 .#define bfd_coff_swap_sym_in(a,e,i) \
1507 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
1509 .#define bfd_coff_swap_lineno_in(a,e,i) \
1510 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
1512 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
1513 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
1515 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
1516 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
1518 .#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
1519 . ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
1521 .#define bfd_coff_swap_sym_out(abfd, i,o) \
1522 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
1524 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
1525 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
1527 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
1528 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
1530 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
1531 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
1533 .#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
1534 .#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
1535 .#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
1536 .#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
1537 .#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
1538 .#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
1539 .#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
1540 .#define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
1541 .#define bfd_coff_long_filenames(abfd) \
1542 . (coff_backend_info (abfd)->_bfd_coff_long_filenames)
1543 .#define bfd_coff_long_section_names(abfd) \
1544 . (coff_backend_info (abfd)->_bfd_coff_long_section_names)
1545 .#define bfd_coff_set_long_section_names(abfd, enable) \
1546 . ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
1547 .#define bfd_coff_default_section_alignment_power(abfd) \
1548 . (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
1549 .#define bfd_coff_max_nscns(abfd) \
1550 . (coff_backend_info (abfd)->_bfd_coff_max_nscns)
1552 .#define bfd_coff_swap_filehdr_in(abfd, i,o) \
1553 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
1555 .#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
1556 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
1558 .#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
1559 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
1561 .#define bfd_coff_swap_reloc_in(abfd, i, o) \
1562 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
1564 .#define bfd_coff_bad_format_hook(abfd, filehdr) \
1565 . ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
1567 .#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
1568 . ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
1569 .#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
1570 . ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
1571 . (abfd, filehdr, aouthdr))
1573 .#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
1574 . ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
1575 . (abfd, scnhdr, name, section, flags_ptr))
1577 .#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
1578 . ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
1580 .#define bfd_coff_slurp_symbol_table(abfd)\
1581 . ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
1583 .#define bfd_coff_symname_in_debug(abfd, sym)\
1584 . ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
1586 .#define bfd_coff_force_symnames_in_strings(abfd)\
1587 . (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
1589 .#define bfd_coff_debug_string_prefix_length(abfd)\
1590 . (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
1592 .#define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
1593 . ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
1594 . (abfd, file, base, symbol, aux, indaux))
1596 .#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
1597 . reloc, data, src_ptr, dst_ptr)\
1598 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
1599 . (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
1601 .#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
1602 . ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
1603 . (abfd, section, reloc, shrink, link_info))
1605 .#define bfd_coff_classify_symbol(abfd, sym)\
1606 . ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
1609 .#define bfd_coff_compute_section_file_positions(abfd)\
1610 . ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
1613 .#define bfd_coff_start_final_link(obfd, info)\
1614 . ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
1616 .#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
1617 . ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
1618 . (obfd, info, ibfd, o, con, rel, isyms, secs))
1619 .#define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
1620 . ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
1621 . (abfd, sec, rel, h, sym, addendp))
1622 .#define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
1623 . ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
1624 . (obfd, info, ibfd, sec, rel, adjustedp))
1625 .#define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
1626 . value, string, cp, coll, hashp)\
1627 . ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
1628 . (info, abfd, name, flags, section, value, string, cp, coll, hashp))
1630 .#define bfd_coff_link_output_has_begun(a,p) \
1631 . ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
1632 .#define bfd_coff_final_link_postscript(a,p) \
1633 . ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
1635 .#define bfd_coff_have_print_pdata(a) \
1636 . (coff_backend_info (a)->_bfd_coff_print_pdata)
1637 .#define bfd_coff_print_pdata(a,p) \
1638 . ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
1640 .{* Macro: Returns true if the bfd is a PE executable as opposed to a
1641 . PE object file. *}
1642 .#define bfd_pei_p(abfd) \
1643 . (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
1646 /* See whether the magic number matches. */
1649 coff_bad_format_hook (bfd
* abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1651 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1653 if (BADMAG (*internal_f
))
1661 ticoff0_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1663 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1665 if (COFF0_BADMAG (*internal_f
))
1674 ticoff1_bad_format_hook (bfd
*abfd ATTRIBUTE_UNUSED
, void * filehdr
)
1676 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
1678 if (COFF1_BADMAG (*internal_f
))
1685 /* Check whether this section uses an alignment other than the
1689 coff_set_custom_section_alignment (bfd
*abfd ATTRIBUTE_UNUSED
,
1691 const struct coff_section_alignment_entry
*alignment_table
,
1692 const unsigned int table_size
)
1694 const unsigned int default_alignment
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1697 for (i
= 0; i
< table_size
; ++i
)
1699 const char *secname
= bfd_section_name (section
);
1701 if (alignment_table
[i
].comparison_length
== (unsigned int) -1
1702 ? strcmp (alignment_table
[i
].name
, secname
) == 0
1703 : strncmp (alignment_table
[i
].name
, secname
,
1704 alignment_table
[i
].comparison_length
) == 0)
1707 if (i
>= table_size
)
1710 if (alignment_table
[i
].default_alignment_min
!= COFF_ALIGNMENT_FIELD_EMPTY
1711 && default_alignment
< alignment_table
[i
].default_alignment_min
)
1714 if (alignment_table
[i
].default_alignment_max
!= COFF_ALIGNMENT_FIELD_EMPTY
1715 #if COFF_DEFAULT_SECTION_ALIGNMENT_POWER != 0
1716 && default_alignment
> alignment_table
[i
].default_alignment_max
1721 section
->alignment_power
= alignment_table
[i
].alignment_power
;
1724 /* Custom section alignment records. */
1726 static const struct coff_section_alignment_entry
1727 coff_section_alignment_table
[] =
1729 #ifdef COFF_SECTION_ALIGNMENT_ENTRIES
1730 COFF_SECTION_ALIGNMENT_ENTRIES
,
1732 /* There must not be any gaps between .stabstr sections. */
1733 { COFF_SECTION_NAME_PARTIAL_MATCH (".stabstr"),
1734 1, COFF_ALIGNMENT_FIELD_EMPTY
, 0 },
1735 /* The .stab section must be aligned to 2**2 at most, to avoid gaps. */
1736 { COFF_SECTION_NAME_PARTIAL_MATCH (".stab"),
1737 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1738 /* Similarly for the .ctors and .dtors sections. */
1739 { COFF_SECTION_NAME_EXACT_MATCH (".ctors"),
1740 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 },
1741 { COFF_SECTION_NAME_EXACT_MATCH (".dtors"),
1742 3, COFF_ALIGNMENT_FIELD_EMPTY
, 2 }
1745 static const unsigned int coff_section_alignment_table_size
=
1746 sizeof coff_section_alignment_table
/ sizeof coff_section_alignment_table
[0];
1748 /* Initialize a section structure with information peculiar to this
1749 particular implementation of COFF. */
1752 coff_new_section_hook (bfd
* abfd
, asection
* section
)
1754 combined_entry_type
*native
;
1756 unsigned char sclass
= C_STAT
;
1758 section
->alignment_power
= COFF_DEFAULT_SECTION_ALIGNMENT_POWER
;
1761 if (bfd_xcoff_text_align_power (abfd
) != 0
1762 && strcmp (bfd_section_name (section
), ".text") == 0)
1763 section
->alignment_power
= bfd_xcoff_text_align_power (abfd
);
1764 else if (bfd_xcoff_data_align_power (abfd
) != 0
1765 && strcmp (bfd_section_name (section
), ".data") == 0)
1766 section
->alignment_power
= bfd_xcoff_data_align_power (abfd
);
1771 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
1772 if (strcmp (bfd_section_name (section
),
1773 xcoff_dwsect_names
[i
].name
) == 0)
1775 section
->alignment_power
= 0;
1782 /* Set up the section symbol. */
1783 if (!_bfd_generic_new_section_hook (abfd
, section
))
1786 /* Allocate aux records for section symbols, to store size and
1789 @@ The 10 is a guess at a plausible maximum number of aux entries
1790 (but shouldn't be a constant). */
1791 amt
= sizeof (combined_entry_type
) * 10;
1792 native
= (combined_entry_type
*) bfd_zalloc (abfd
, amt
);
1796 /* We don't need to set up n_name, n_value, or n_scnum in the native
1797 symbol information, since they'll be overridden by the BFD symbol
1798 anyhow. However, we do need to set the type and storage class,
1799 in case this symbol winds up getting written out. The value 0
1800 for n_numaux is already correct. */
1802 native
->is_sym
= TRUE
;
1803 native
->u
.syment
.n_type
= T_NULL
;
1804 native
->u
.syment
.n_sclass
= sclass
;
1806 coffsymbol (section
->symbol
)->native
= native
;
1808 coff_set_custom_section_alignment (abfd
, section
,
1809 coff_section_alignment_table
,
1810 coff_section_alignment_table_size
);
1815 #ifdef COFF_ALIGN_IN_SECTION_HEADER
1817 /* Set the alignment of a BFD section. */
1820 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1824 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1827 #ifdef COFF_DECODE_ALIGNMENT
1828 i
= COFF_DECODE_ALIGNMENT(hdr
->s_flags
);
1830 section
->alignment_power
= i
;
1832 #ifdef coff_set_section_load_page
1833 coff_set_section_load_page (section
, hdr
->s_page
);
1837 #else /* ! COFF_ALIGN_IN_SECTION_HEADER */
1841 coff_set_alignment_hook (bfd
* abfd ATTRIBUTE_UNUSED
,
1845 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1847 unsigned int alignment_power_const
1848 = hdr
->s_flags
& IMAGE_SCN_ALIGN_POWER_BIT_MASK
;
1850 switch (alignment_power_const
)
1852 case IMAGE_SCN_ALIGN_8192BYTES
:
1853 case IMAGE_SCN_ALIGN_4096BYTES
:
1854 case IMAGE_SCN_ALIGN_2048BYTES
:
1855 case IMAGE_SCN_ALIGN_1024BYTES
:
1856 case IMAGE_SCN_ALIGN_512BYTES
:
1857 case IMAGE_SCN_ALIGN_256BYTES
:
1858 case IMAGE_SCN_ALIGN_128BYTES
:
1859 case IMAGE_SCN_ALIGN_64BYTES
:
1860 case IMAGE_SCN_ALIGN_32BYTES
:
1861 case IMAGE_SCN_ALIGN_16BYTES
:
1862 case IMAGE_SCN_ALIGN_8BYTES
:
1863 case IMAGE_SCN_ALIGN_4BYTES
:
1864 case IMAGE_SCN_ALIGN_2BYTES
:
1865 case IMAGE_SCN_ALIGN_1BYTES
:
1866 section
->alignment_power
1867 = IMAGE_SCN_ALIGN_POWER_NUM (alignment_power_const
);
1873 /* In a PE image file, the s_paddr field holds the virtual size of a
1874 section, while the s_size field holds the raw size. We also keep
1875 the original section flag value, since not every bit can be
1876 mapped onto a generic BFD section bit. */
1877 if (coff_section_data (abfd
, section
) == NULL
)
1879 amt
= sizeof (struct coff_section_tdata
);
1880 section
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
1881 if (section
->used_by_bfd
== NULL
)
1882 /* FIXME: Return error. */
1886 if (pei_section_data (abfd
, section
) == NULL
)
1888 amt
= sizeof (struct pei_section_tdata
);
1889 coff_section_data (abfd
, section
)->tdata
= bfd_zalloc (abfd
, amt
);
1890 if (coff_section_data (abfd
, section
)->tdata
== NULL
)
1891 /* FIXME: Return error. */
1894 pei_section_data (abfd
, section
)->virt_size
= hdr
->s_paddr
;
1895 pei_section_data (abfd
, section
)->pe_flags
= hdr
->s_flags
;
1897 section
->lma
= hdr
->s_vaddr
;
1899 /* Check for extended relocs. */
1900 if (hdr
->s_flags
& IMAGE_SCN_LNK_NRELOC_OVFL
)
1902 struct external_reloc dst
;
1903 struct internal_reloc n
;
1904 file_ptr oldpos
= bfd_tell (abfd
);
1905 bfd_size_type relsz
= bfd_coff_relsz (abfd
);
1907 if (bfd_seek (abfd
, (file_ptr
) hdr
->s_relptr
, 0) != 0)
1909 if (bfd_bread (& dst
, relsz
, abfd
) != relsz
)
1912 coff_swap_reloc_in (abfd
, &dst
, &n
);
1913 if (bfd_seek (abfd
, oldpos
, 0) != 0)
1915 section
->reloc_count
= hdr
->s_nreloc
= n
.r_vaddr
- 1;
1916 section
->rel_filepos
+= relsz
;
1918 else if (hdr
->s_nreloc
== 0xffff)
1920 (_("%pB: warning: claims to have 0xffff relocs, without overflow"),
1924 #undef ELIFALIGN_SET
1926 #else /* ! COFF_WITH_PE */
1929 /* We grossly abuse this function to handle XCOFF overflow headers.
1930 When we see one, we correct the reloc and line number counts in the
1931 real header, and remove the section we just created. */
1934 coff_set_alignment_hook (bfd
*abfd
, asection
*section
, void * scnhdr
)
1936 struct internal_scnhdr
*hdr
= (struct internal_scnhdr
*) scnhdr
;
1939 if ((hdr
->s_flags
& STYP_OVRFLO
) == 0)
1942 real_sec
= coff_section_from_bfd_index (abfd
, (int) hdr
->s_nreloc
);
1943 if (real_sec
== NULL
)
1946 real_sec
->reloc_count
= hdr
->s_paddr
;
1947 real_sec
->lineno_count
= hdr
->s_vaddr
;
1949 if (!bfd_section_removed_from_list (abfd
, section
))
1951 bfd_section_list_remove (abfd
, section
);
1952 --abfd
->section_count
;
1956 #else /* ! RS6000COFF_C */
1959 coff_set_alignment_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
1960 asection
*section ATTRIBUTE_UNUSED
,
1961 void *scnhdr ATTRIBUTE_UNUSED
)
1965 #endif /* ! RS6000COFF_C */
1966 #endif /* ! COFF_WITH_PE */
1967 #endif /* ! COFF_ALIGN_IN_SECTION_HEADER */
1969 #ifndef coff_mkobject
1972 coff_mkobject (bfd
* abfd
)
1974 coff_data_type
*coff
;
1975 size_t amt
= sizeof (coff_data_type
);
1977 abfd
->tdata
.coff_obj_data
= bfd_zalloc (abfd
, amt
);
1978 if (abfd
->tdata
.coff_obj_data
== NULL
)
1980 coff
= coff_data (abfd
);
1981 coff
->symbols
= NULL
;
1982 coff
->conversion_table
= NULL
;
1983 coff
->raw_syments
= NULL
;
1984 coff
->relocbase
= 0;
1985 coff
->local_toc_sym_map
= 0;
1987 /* make_abs_section(abfd);*/
1993 /* Create the COFF backend specific information. */
1995 #ifndef coff_mkobject_hook
1997 coff_mkobject_hook (bfd
* abfd
,
1999 void * aouthdr ATTRIBUTE_UNUSED
)
2001 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2002 coff_data_type
*coff
;
2004 if (! coff_mkobject (abfd
))
2007 coff
= coff_data (abfd
);
2009 coff
->sym_filepos
= internal_f
->f_symptr
;
2011 /* These members communicate important constants about the symbol
2012 table to GDB's symbol-reading code. These `constants'
2013 unfortunately vary among coff implementations... */
2014 coff
->local_n_btmask
= N_BTMASK
;
2015 coff
->local_n_btshft
= N_BTSHFT
;
2016 coff
->local_n_tmask
= N_TMASK
;
2017 coff
->local_n_tshift
= N_TSHIFT
;
2018 coff
->local_symesz
= bfd_coff_symesz (abfd
);
2019 coff
->local_auxesz
= bfd_coff_auxesz (abfd
);
2020 coff
->local_linesz
= bfd_coff_linesz (abfd
);
2022 coff
->timestamp
= internal_f
->f_timdat
;
2024 obj_raw_syment_count (abfd
) =
2025 obj_conv_table_size (abfd
) =
2026 internal_f
->f_nsyms
;
2029 if ((internal_f
->f_flags
& F_SHROBJ
) != 0)
2030 abfd
->flags
|= DYNAMIC
;
2031 if (aouthdr
!= NULL
&& internal_f
->f_opthdr
>= bfd_coff_aoutsz (abfd
))
2033 struct internal_aouthdr
*internal_a
=
2034 (struct internal_aouthdr
*) aouthdr
;
2035 struct xcoff_tdata
*xcoff
;
2037 xcoff
= xcoff_data (abfd
);
2038 # ifdef U803XTOCMAGIC
2039 xcoff
->xcoff64
= internal_f
->f_magic
== U803XTOCMAGIC
;
2043 xcoff
->full_aouthdr
= TRUE
;
2044 xcoff
->toc
= internal_a
->o_toc
;
2045 xcoff
->sntoc
= internal_a
->o_sntoc
;
2046 xcoff
->snentry
= internal_a
->o_snentry
;
2047 bfd_xcoff_text_align_power (abfd
) = internal_a
->o_algntext
;
2048 bfd_xcoff_data_align_power (abfd
) = internal_a
->o_algndata
;
2049 xcoff
->modtype
= internal_a
->o_modtype
;
2050 xcoff
->cputype
= internal_a
->o_cputype
;
2051 xcoff
->maxdata
= internal_a
->o_maxdata
;
2052 xcoff
->maxstack
= internal_a
->o_maxstack
;
2057 /* Set the flags field from the COFF header read in. */
2058 if (! _bfd_coff_arm_set_private_flags (abfd
, internal_f
->f_flags
))
2063 /* FIXME: I'm not sure this is ever executed, since peicode.h
2064 defines coff_mkobject_hook. */
2065 if ((internal_f
->f_flags
& IMAGE_FILE_DEBUG_STRIPPED
) == 0)
2066 abfd
->flags
|= HAS_DEBUG
;
2069 if ((internal_f
->f_flags
& F_GO32STUB
) != 0)
2071 coff
->go32stub
= (char *) bfd_alloc (abfd
, (bfd_size_type
) GO32_STUBSIZE
);
2072 if (coff
->go32stub
== NULL
)
2075 if (coff
->go32stub
!= NULL
)
2076 memcpy (coff
->go32stub
, internal_f
->go32stub
, GO32_STUBSIZE
);
2082 /* Determine the machine architecture and type. FIXME: This is target
2083 dependent because the magic numbers are defined in the target
2084 dependent header files. But there is no particular need for this.
2085 If the magic numbers were moved to a separate file, this function
2086 would be target independent and would also be much more successful
2087 at linking together COFF files for different architectures. */
2090 coff_set_arch_mach_hook (bfd
*abfd
, void * filehdr
)
2092 unsigned long machine
;
2093 enum bfd_architecture arch
;
2094 struct internal_filehdr
*internal_f
= (struct internal_filehdr
*) filehdr
;
2096 /* Zero selects the default machine for an arch. */
2098 switch (internal_f
->f_magic
)
2102 arch
= bfd_arch_powerpc
;
2108 case I386AIXMAGIC
: /* Danbury PS/2 AIX C Compiler. */
2110 case I386_APPLE_MAGIC
:
2111 case I386_FREEBSD_MAGIC
:
2112 case I386_LINUX_MAGIC
:
2113 case I386_NETBSD_MAGIC
:
2114 arch
= bfd_arch_i386
;
2119 case AMD64_APPLE_MAGIC
:
2120 case AMD64_FREEBSD_MAGIC
:
2121 case AMD64_LINUX_MAGIC
:
2122 case AMD64_NETBSD_MAGIC
:
2123 arch
= bfd_arch_i386
;
2124 machine
= bfd_mach_x86_64
;
2129 arch
= bfd_arch_ia64
;
2136 arch
= bfd_arch_arm
;
2137 machine
= bfd_arm_get_mach_from_notes (abfd
, ARM_NOTE_SECTION
);
2138 if (machine
== bfd_mach_arm_unknown
)
2140 switch (internal_f
->f_flags
& F_ARM_ARCHITECTURE_MASK
)
2142 case F_ARM_2
: machine
= bfd_mach_arm_2
; break;
2143 case F_ARM_2a
: machine
= bfd_mach_arm_2a
; break;
2144 case F_ARM_3
: machine
= bfd_mach_arm_3
; break;
2146 case F_ARM_3M
: machine
= bfd_mach_arm_3M
; break;
2147 case F_ARM_4
: machine
= bfd_mach_arm_4
; break;
2148 case F_ARM_4T
: machine
= bfd_mach_arm_4T
; break;
2149 /* The COFF header does not have enough bits available
2150 to cover all the different ARM architectures. So
2151 we interpret F_ARM_5, the highest flag value to mean
2152 "the highest ARM architecture known to BFD" which is
2153 currently the XScale. */
2154 case F_ARM_5
: machine
= bfd_mach_arm_XScale
; break;
2161 arch
= bfd_arch_z80
;
2162 switch (internal_f
->f_flags
& F_MACHMASK
)
2164 case bfd_mach_z80strict
<< 12:
2165 case bfd_mach_z80
<< 12:
2166 case bfd_mach_z80n
<< 12:
2167 case bfd_mach_z80full
<< 12:
2168 case bfd_mach_r800
<< 12:
2169 case bfd_mach_gbz80
<< 12:
2170 case bfd_mach_z180
<< 12:
2171 case bfd_mach_ez80_z80
<< 12:
2172 case bfd_mach_ez80_adl
<< 12:
2173 machine
= ((unsigned)internal_f
->f_flags
& F_MACHMASK
) >> 12;
2182 arch
= bfd_arch_z8k
;
2183 switch (internal_f
->f_flags
& F_MACHMASK
)
2186 machine
= bfd_mach_z8001
;
2189 machine
= bfd_mach_z8002
;
2209 if (xcoff_data (abfd
)->cputype
!= -1)
2210 cputype
= xcoff_data (abfd
)->cputype
& 0xff;
2213 /* We did not get a value from the a.out header. If the
2214 file has not been stripped, we may be able to get the
2215 architecture information from the first symbol, if it
2216 is a .file symbol. */
2217 if (obj_raw_syment_count (abfd
) == 0)
2222 struct internal_syment sym
;
2223 bfd_size_type amt
= bfd_coff_symesz (abfd
);
2225 if (bfd_seek (abfd
, obj_sym_filepos (abfd
), SEEK_SET
) != 0)
2227 buf
= _bfd_malloc_and_read (abfd
, amt
, amt
);
2230 bfd_coff_swap_sym_in (abfd
, buf
, & sym
);
2231 if (sym
.n_sclass
== C_FILE
)
2232 cputype
= sym
.n_type
& 0xff;
2239 /* FIXME: We don't handle all cases here. */
2244 arch
= bfd_xcoff_architecture (abfd
);
2245 machine
= bfd_xcoff_machine (abfd
);
2249 arch
= bfd_arch_powerpc
;
2250 machine
= bfd_mach_ppc_601
;
2252 case 2: /* 64 bit PowerPC */
2253 arch
= bfd_arch_powerpc
;
2254 machine
= bfd_mach_ppc_620
;
2257 arch
= bfd_arch_powerpc
;
2258 machine
= bfd_mach_ppc
;
2261 arch
= bfd_arch_rs6000
;
2262 machine
= bfd_mach_rs6k
;
2269 #ifdef SH_ARCH_MAGIC_BIG
2270 case SH_ARCH_MAGIC_BIG
:
2271 case SH_ARCH_MAGIC_LITTLE
:
2273 case SH_ARCH_MAGIC_WINCE
:
2279 #ifdef MIPS_ARCH_MAGIC_WINCE
2280 case MIPS_ARCH_MAGIC_WINCE
:
2281 arch
= bfd_arch_mips
;
2287 #ifdef LYNXCOFFMAGIC
2290 arch
= bfd_arch_sparc
;
2296 arch
= bfd_arch_tic30
;
2301 #ifdef TICOFF_TARGET_ARCH
2302 /* This TI COFF section should be used by all new TI COFF v0 targets. */
2304 arch
= TICOFF_TARGET_ARCH
;
2305 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2311 /* This TI COFF section should be used by all new TI COFF v1/2 targets. */
2312 /* TI COFF1 and COFF2 use the target_id field to specify which arch. */
2315 switch (internal_f
->f_target_id
)
2319 arch
= TICOFF_TARGET_ARCH
;
2320 machine
= TICOFF_TARGET_MACHINE_GET (internal_f
->f_flags
);
2324 arch
= bfd_arch_obscure
;
2326 (_("unrecognized TI COFF target id '0x%x'"),
2327 internal_f
->f_target_id
);
2335 arch
= bfd_arch_mcore
;
2339 default: /* Unreadable input file type. */
2340 arch
= bfd_arch_obscure
;
2344 bfd_default_set_arch_mach (abfd
, arch
, machine
);
2349 symname_in_debug_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2350 struct internal_syment
*sym ATTRIBUTE_UNUSED
)
2352 #ifdef SYMNAME_IN_DEBUG
2353 return SYMNAME_IN_DEBUG (sym
) != 0;
2362 #define FORCE_SYMNAMES_IN_STRINGS
2365 /* Handle the csect auxent of a C_EXT, C_AIX_WEAKEXT or C_HIDEXT symbol. */
2368 coff_pointerize_aux_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
2369 combined_entry_type
*table_base
,
2370 combined_entry_type
*symbol
,
2371 unsigned int indaux
,
2372 combined_entry_type
*aux
)
2374 BFD_ASSERT (symbol
->is_sym
);
2375 int n_sclass
= symbol
->u
.syment
.n_sclass
;
2377 if (CSECT_SYM_P (n_sclass
)
2378 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2380 BFD_ASSERT (! aux
->is_sym
);
2381 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) == XTY_LD
)
2383 aux
->u
.auxent
.x_csect
.x_scnlen
.p
=
2384 table_base
+ aux
->u
.auxent
.x_csect
.x_scnlen
.l
;
2385 aux
->fix_scnlen
= 1;
2388 /* Return TRUE to indicate that the caller should not do any
2389 further work on this auxent. */
2393 /* Return FALSE to indicate that this auxent should be handled by
2399 #define coff_pointerize_aux_hook 0
2400 #endif /* ! RS6000COFF_C */
2402 /* Print an aux entry. This returns TRUE if it has printed it. */
2405 coff_print_aux (bfd
*abfd ATTRIBUTE_UNUSED
,
2406 FILE *file ATTRIBUTE_UNUSED
,
2407 combined_entry_type
*table_base ATTRIBUTE_UNUSED
,
2408 combined_entry_type
*symbol ATTRIBUTE_UNUSED
,
2409 combined_entry_type
*aux ATTRIBUTE_UNUSED
,
2410 unsigned int indaux ATTRIBUTE_UNUSED
)
2412 BFD_ASSERT (symbol
->is_sym
);
2413 BFD_ASSERT (! aux
->is_sym
);
2415 if (CSECT_SYM_P (symbol
->u
.syment
.n_sclass
)
2416 && indaux
+ 1 == symbol
->u
.syment
.n_numaux
)
2418 /* This is a csect entry. */
2419 fprintf (file
, "AUX ");
2420 if (SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
) != XTY_LD
)
2422 BFD_ASSERT (! aux
->fix_scnlen
);
2423 fprintf (file
, "val %5" BFD_VMA_FMT
"d",
2424 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2428 fprintf (file
, "indx ");
2429 if (! aux
->fix_scnlen
)
2430 fprintf (file
, "%4" BFD_VMA_FMT
"d",
2431 aux
->u
.auxent
.x_csect
.x_scnlen
.l
);
2433 fprintf (file
, "%4ld",
2434 (long) (aux
->u
.auxent
.x_csect
.x_scnlen
.p
- table_base
));
2437 " prmhsh %ld snhsh %u typ %d algn %d clss %u stb %ld snstb %u",
2438 aux
->u
.auxent
.x_csect
.x_parmhash
,
2439 (unsigned int) aux
->u
.auxent
.x_csect
.x_snhash
,
2440 SMTYP_SMTYP (aux
->u
.auxent
.x_csect
.x_smtyp
),
2441 SMTYP_ALIGN (aux
->u
.auxent
.x_csect
.x_smtyp
),
2442 (unsigned int) aux
->u
.auxent
.x_csect
.x_smclas
,
2443 aux
->u
.auxent
.x_csect
.x_stab
,
2444 (unsigned int) aux
->u
.auxent
.x_csect
.x_snstab
);
2449 /* Return FALSE to indicate that no special action was taken. */
2457 To write relocations, the back end steps though the
2458 canonical relocation table and create an
2459 @code{internal_reloc}. The symbol index to use is removed from
2460 the @code{offset} field in the symbol table supplied. The
2461 address comes directly from the sum of the section base
2462 address and the relocation offset; the type is dug directly
2463 from the howto field. Then the @code{internal_reloc} is
2464 swapped into the shape of an @code{external_reloc} and written
2472 /* AUX's ld wants relocations to be sorted. */
2474 compare_arelent_ptr (const void * x
, const void * y
)
2476 const arelent
**a
= (const arelent
**) x
;
2477 const arelent
**b
= (const arelent
**) y
;
2478 bfd_size_type aadr
= (*a
)->address
;
2479 bfd_size_type badr
= (*b
)->address
;
2481 return (aadr
< badr
? -1 : badr
< aadr
? 1 : 0);
2484 #endif /* TARG_AUX */
2487 coff_write_relocs (bfd
* abfd
, int first_undef
)
2491 for (s
= abfd
->sections
; s
!= NULL
; s
= s
->next
)
2494 struct external_reloc dst
;
2501 /* Sort relocations before we write them out. */
2504 amt
= s
->reloc_count
;
2505 amt
*= sizeof (arelent
*);
2506 p
= bfd_malloc (amt
);
2509 if (s
->reloc_count
> 0)
2514 memcpy (p
, s
->orelocation
, (size_t) amt
);
2515 qsort (p
, s
->reloc_count
, sizeof (arelent
*), compare_arelent_ptr
);
2520 if (bfd_seek (abfd
, s
->rel_filepos
, SEEK_SET
) != 0)
2524 if (obj_pe (abfd
) && s
->reloc_count
>= 0xffff)
2526 /* Encode real count here as first reloc. */
2527 struct internal_reloc n
;
2529 memset (& n
, 0, sizeof (n
));
2530 /* Add one to count *this* reloc (grr). */
2531 n
.r_vaddr
= s
->reloc_count
+ 1;
2532 coff_swap_reloc_out (abfd
, &n
, &dst
);
2533 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2534 abfd
) != bfd_coff_relsz (abfd
))
2539 for (i
= 0; i
< s
->reloc_count
; i
++)
2541 struct internal_reloc n
;
2544 memset (& n
, 0, sizeof (n
));
2546 /* Now we've renumbered the symbols we know where the
2547 undefined symbols live in the table. Check the reloc
2548 entries for symbols who's output bfd isn't the right one.
2549 This is because the symbol was undefined (which means
2550 that all the pointers are never made to point to the same
2551 place). This is a bad thing,'cause the symbols attached
2552 to the output bfd are indexed, so that the relocation
2553 entries know which symbol index they point to. So we
2554 have to look up the output symbol here. */
2556 if (q
->sym_ptr_ptr
[0] != NULL
&& q
->sym_ptr_ptr
[0]->the_bfd
!= abfd
)
2559 const char *sname
= q
->sym_ptr_ptr
[0]->name
;
2560 asymbol
**outsyms
= abfd
->outsymbols
;
2562 for (j
= first_undef
; outsyms
[j
]; j
++)
2564 const char *intable
= outsyms
[j
]->name
;
2566 if (strcmp (intable
, sname
) == 0)
2568 /* Got a hit, so repoint the reloc. */
2569 q
->sym_ptr_ptr
= outsyms
+ j
;
2575 n
.r_vaddr
= q
->address
+ s
->vma
;
2578 /* The 29k const/consth reloc pair is a real kludge. The consth
2579 part doesn't have a symbol; it has an offset. So rebuilt
2581 if (q
->howto
->type
== R_IHCONST
)
2582 n
.r_symndx
= q
->addend
;
2585 if (q
->sym_ptr_ptr
&& q
->sym_ptr_ptr
[0] != NULL
)
2587 #ifdef SECTION_RELATIVE_ABSOLUTE_SYMBOL_P
2588 if (SECTION_RELATIVE_ABSOLUTE_SYMBOL_P (q
, s
))
2590 if ((*q
->sym_ptr_ptr
)->section
== bfd_abs_section_ptr
2591 && ((*q
->sym_ptr_ptr
)->flags
& BSF_SECTION_SYM
) != 0)
2593 /* This is a relocation relative to the absolute symbol. */
2597 n
.r_symndx
= get_index ((*(q
->sym_ptr_ptr
)));
2598 /* Check to see if the symbol reloc points to a symbol
2599 we don't have in our symbol table. */
2600 if (n
.r_symndx
> obj_conv_table_size (abfd
))
2602 bfd_set_error (bfd_error_bad_value
);
2603 /* xgettext:c-format */
2604 _bfd_error_handler (_("%pB: reloc against a non-existent"
2605 " symbol index: %ld"),
2612 #ifdef SWAP_OUT_RELOC_OFFSET
2613 n
.r_offset
= q
->addend
;
2617 /* Work out reloc type from what is required. */
2618 SELECT_RELOC (n
, q
->howto
);
2620 n
.r_type
= q
->howto
->type
;
2622 coff_swap_reloc_out (abfd
, &n
, &dst
);
2624 if (bfd_bwrite (& dst
, (bfd_size_type
) bfd_coff_relsz (abfd
),
2625 abfd
) != bfd_coff_relsz (abfd
))
2638 /* Set flags and magic number of a coff file from architecture and machine
2639 type. Result is TRUE if we can represent the arch&type, FALSE if not. */
2642 coff_set_flags (bfd
* abfd
,
2643 unsigned int *magicp ATTRIBUTE_UNUSED
,
2644 unsigned short *flagsp ATTRIBUTE_UNUSED
)
2646 switch (bfd_get_arch (abfd
))
2651 switch (bfd_get_mach (abfd
))
2653 case bfd_mach_z80strict
:
2656 case bfd_mach_z80full
:
2658 case bfd_mach_gbz80
:
2660 case bfd_mach_ez80_z80
:
2661 case bfd_mach_ez80_adl
:
2662 *flagsp
= bfd_get_mach (abfd
) << 12;
2674 switch (bfd_get_mach (abfd
))
2676 case bfd_mach_z8001
: *flagsp
= F_Z8001
; break;
2677 case bfd_mach_z8002
: *flagsp
= F_Z8002
; break;
2678 default: return FALSE
;
2684 case bfd_arch_tic30
:
2685 *magicp
= TIC30MAGIC
;
2689 #ifdef TICOFF_DEFAULT_MAGIC
2690 case TICOFF_TARGET_ARCH
:
2691 /* If there's no indication of which version we want, use the default. */
2693 *magicp
= TICOFF_DEFAULT_MAGIC
;
2696 /* We may want to output in a different COFF version. */
2697 switch (abfd
->xvec
->name
[4])
2700 *magicp
= TICOFF0MAGIC
;
2703 *magicp
= TICOFF1MAGIC
;
2706 *magicp
= TICOFF2MAGIC
;
2712 TICOFF_TARGET_MACHINE_SET (flagsp
, bfd_get_mach (abfd
));
2719 * magicp
= ARMPEMAGIC
;
2721 * magicp
= ARMMAGIC
;
2724 if (APCS_SET (abfd
))
2726 if (APCS_26_FLAG (abfd
))
2727 * flagsp
|= F_APCS26
;
2729 if (APCS_FLOAT_FLAG (abfd
))
2730 * flagsp
|= F_APCS_FLOAT
;
2732 if (PIC_FLAG (abfd
))
2735 if (INTERWORK_SET (abfd
) && INTERWORK_FLAG (abfd
))
2736 * flagsp
|= F_INTERWORK
;
2737 switch (bfd_get_mach (abfd
))
2739 case bfd_mach_arm_2
: * flagsp
|= F_ARM_2
; break;
2740 case bfd_mach_arm_2a
: * flagsp
|= F_ARM_2a
; break;
2741 case bfd_mach_arm_3
: * flagsp
|= F_ARM_3
; break;
2742 case bfd_mach_arm_3M
: * flagsp
|= F_ARM_3M
; break;
2743 case bfd_mach_arm_4
: * flagsp
|= F_ARM_4
; break;
2744 case bfd_mach_arm_4T
: * flagsp
|= F_ARM_4T
; break;
2745 case bfd_mach_arm_5
: * flagsp
|= F_ARM_5
; break;
2746 /* FIXME: we do not have F_ARM vaues greater than F_ARM_5.
2747 See also the comment in coff_set_arch_mach_hook(). */
2748 case bfd_mach_arm_5T
: * flagsp
|= F_ARM_5
; break;
2749 case bfd_mach_arm_5TE
: * flagsp
|= F_ARM_5
; break;
2750 case bfd_mach_arm_XScale
: * flagsp
|= F_ARM_5
; break;
2756 case bfd_arch_powerpc
:
2761 #if defined(I386MAGIC) || defined(AMD64MAGIC)
2763 #if defined(I386MAGIC)
2764 *magicp
= I386MAGIC
;
2767 /* Just overwrite the usual value if we're doing Lynx. */
2768 *magicp
= LYNXCOFFMAGIC
;
2770 #if defined AMD64MAGIC
2771 *magicp
= AMD64MAGIC
;
2778 *magicp
= IA64MAGIC
;
2782 #ifdef SH_ARCH_MAGIC_BIG
2784 #ifdef COFF_IMAGE_WITH_PE
2785 *magicp
= SH_ARCH_MAGIC_WINCE
;
2787 if (bfd_big_endian (abfd
))
2788 *magicp
= SH_ARCH_MAGIC_BIG
;
2790 *magicp
= SH_ARCH_MAGIC_LITTLE
;
2795 #ifdef MIPS_ARCH_MAGIC_WINCE
2797 *magicp
= MIPS_ARCH_MAGIC_WINCE
;
2802 case bfd_arch_sparc
:
2803 *magicp
= SPARCMAGIC
;
2805 /* Just overwrite the usual value if we're doing Lynx. */
2806 *magicp
= LYNXCOFFMAGIC
;
2812 case bfd_arch_rs6000
:
2814 case bfd_arch_powerpc
:
2816 BFD_ASSERT (bfd_get_flavour (abfd
) == bfd_target_xcoff_flavour
);
2817 *magicp
= bfd_xcoff_magic_number (abfd
);
2822 case bfd_arch_mcore
:
2823 * magicp
= MCOREMAGIC
;
2827 default: /* Unknown architecture. */
2828 /* Fall through to "return FALSE" below, to avoid
2829 "statement never reached" errors on the one below. */
2837 coff_set_arch_mach (bfd
* abfd
,
2838 enum bfd_architecture arch
,
2839 unsigned long machine
)
2842 unsigned short dummy2
;
2844 if (! bfd_default_set_arch_mach (abfd
, arch
, machine
))
2847 if (arch
!= bfd_arch_unknown
2848 && ! coff_set_flags (abfd
, &dummy1
, &dummy2
))
2849 return FALSE
; /* We can't represent this type. */
2851 return TRUE
; /* We're easy... */
2854 #ifdef COFF_IMAGE_WITH_PE
2856 /* This is used to sort sections by VMA, as required by PE image
2860 sort_by_secaddr (const void * arg1
, const void * arg2
)
2862 const asection
*a
= *(const asection
**) arg1
;
2863 const asection
*b
= *(const asection
**) arg2
;
2865 if (a
->vma
< b
->vma
)
2867 else if (a
->vma
> b
->vma
)
2873 #endif /* COFF_IMAGE_WITH_PE */
2875 /* Calculate the file position for each section. */
2877 #define ALIGN_SECTIONS_IN_FILE
2879 #undef ALIGN_SECTIONS_IN_FILE
2883 coff_compute_section_file_positions (bfd
* abfd
)
2886 file_ptr sofar
= bfd_coff_filhsz (abfd
);
2887 bfd_boolean align_adjust
;
2888 unsigned int target_index
;
2889 #ifdef ALIGN_SECTIONS_IN_FILE
2890 asection
*previous
= NULL
;
2894 #ifdef COFF_IMAGE_WITH_PE
2897 if (coff_data (abfd
)->link_info
2898 || (pe_data (abfd
) && pe_data (abfd
)->pe_opthdr
.FileAlignment
))
2900 page_size
= pe_data (abfd
)->pe_opthdr
.FileAlignment
;
2902 /* If no file alignment has been set, default to one.
2903 This repairs 'ld -r' for arm-wince-pe target. */
2907 /* PR 17512: file: 0ac816d3. */
2910 bfd_set_error (bfd_error_file_too_big
);
2912 /* xgettext:c-format */
2913 (_("%pB: page size is too large (0x%x)"), abfd
, page_size
);
2918 page_size
= PE_DEF_FILE_ALIGNMENT
;
2920 #ifdef COFF_PAGE_SIZE
2921 int page_size
= COFF_PAGE_SIZE
;
2926 /* On XCOFF, if we have symbols, set up the .debug section. */
2927 if (bfd_get_symcount (abfd
) > 0)
2930 bfd_size_type i
, symcount
;
2934 symcount
= bfd_get_symcount (abfd
);
2935 for (symp
= abfd
->outsymbols
, i
= 0; i
< symcount
; symp
++, i
++)
2937 coff_symbol_type
*cf
;
2939 cf
= coff_symbol_from (*symp
);
2941 && cf
->native
!= NULL
2942 && cf
->native
->is_sym
2943 && SYMNAME_IN_DEBUG (&cf
->native
->u
.syment
))
2947 len
= strlen (bfd_asymbol_name (*symp
));
2948 if (len
> SYMNMLEN
|| bfd_coff_force_symnames_in_strings (abfd
))
2949 sz
+= len
+ 1 + bfd_coff_debug_string_prefix_length (abfd
);
2956 dsec
= bfd_make_section_old_way (abfd
, DOT_DEBUG
);
2960 dsec
->flags
|= SEC_HAS_CONTENTS
;
2965 if (bfd_get_start_address (abfd
))
2966 /* A start address may have been added to the original file. In this
2967 case it will need an optional header to record it. */
2968 abfd
->flags
|= EXEC_P
;
2970 if (abfd
->flags
& EXEC_P
)
2971 sofar
+= bfd_coff_aoutsz (abfd
);
2973 else if (xcoff_data (abfd
)->full_aouthdr
)
2974 sofar
+= bfd_coff_aoutsz (abfd
);
2976 sofar
+= SMALL_AOUTSZ
;
2979 sofar
+= abfd
->section_count
* bfd_coff_scnhsz (abfd
);
2982 /* XCOFF handles overflows in the reloc and line number count fields
2983 by allocating a new section header to hold the correct counts. */
2984 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
2985 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
2986 sofar
+= bfd_coff_scnhsz (abfd
);
2989 #ifdef COFF_IMAGE_WITH_PE
2991 /* PE requires the sections to be in memory order when listed in
2992 the section headers. It also does not like empty loadable
2993 sections. The sections apparently do not have to be in the
2994 right order in the image file itself, but we do need to get the
2995 target_index values right. */
2998 asection
**section_list
;
3002 #ifdef COFF_PAGE_SIZE
3003 /* Clear D_PAGED if section alignment is smaller than
3005 if (pe_data (abfd
)->pe_opthdr
.SectionAlignment
< COFF_PAGE_SIZE
)
3006 abfd
->flags
&= ~D_PAGED
;
3010 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3013 /* We allocate an extra cell to simplify the final loop. */
3014 amt
= sizeof (struct asection
*) * (count
+ 1);
3015 section_list
= (asection
**) bfd_malloc (amt
);
3016 if (section_list
== NULL
)
3020 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3022 section_list
[i
] = current
;
3025 section_list
[i
] = NULL
;
3027 qsort (section_list
, count
, sizeof (asection
*), sort_by_secaddr
);
3029 /* Rethread the linked list into sorted order; at the same time,
3030 assign target_index values. */
3032 abfd
->sections
= NULL
;
3033 abfd
->section_last
= NULL
;
3034 for (i
= 0; i
< count
; i
++)
3036 current
= section_list
[i
];
3037 bfd_section_list_append (abfd
, current
);
3039 /* Later, if the section has zero size, we'll be throwing it
3040 away, so we don't want to number it now. Note that having
3041 a zero size and having real contents are different
3042 concepts: .bss has no contents, but (usually) non-zero
3044 if (current
->size
== 0)
3046 /* Discard. However, it still might have (valid) symbols
3047 in it, so arbitrarily set it to section 1 (indexing is
3048 1-based here; usually .text). __end__ and other
3049 contents of .endsection really have this happen.
3050 FIXME: This seems somewhat dubious. */
3051 current
->target_index
= 1;
3054 current
->target_index
= target_index
++;
3057 free (section_list
);
3059 #else /* ! COFF_IMAGE_WITH_PE */
3061 /* Set the target_index field. */
3063 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3064 current
->target_index
= target_index
++;
3066 #endif /* ! COFF_IMAGE_WITH_PE */
3068 if (target_index
>= bfd_coff_max_nscns (abfd
))
3070 bfd_set_error (bfd_error_file_too_big
);
3072 /* xgettext:c-format */
3073 (_("%pB: too many sections (%d)"), abfd
, target_index
);
3077 align_adjust
= FALSE
;
3078 for (current
= abfd
->sections
;
3080 current
= current
->next
)
3082 #ifdef COFF_IMAGE_WITH_PE
3083 /* With PE we have to pad each section to be a multiple of its
3084 page size too, and remember both sizes. */
3085 if (coff_section_data (abfd
, current
) == NULL
)
3087 size_t amt
= sizeof (struct coff_section_tdata
);
3089 current
->used_by_bfd
= bfd_zalloc (abfd
, amt
);
3090 if (current
->used_by_bfd
== NULL
)
3093 if (pei_section_data (abfd
, current
) == NULL
)
3095 size_t amt
= sizeof (struct pei_section_tdata
);
3097 coff_section_data (abfd
, current
)->tdata
= bfd_zalloc (abfd
, amt
);
3098 if (coff_section_data (abfd
, current
)->tdata
== NULL
)
3101 if (pei_section_data (abfd
, current
)->virt_size
== 0)
3102 pei_section_data (abfd
, current
)->virt_size
= current
->size
;
3105 /* Only deal with sections which have contents. */
3106 if (!(current
->flags
& SEC_HAS_CONTENTS
))
3109 current
->rawsize
= current
->size
;
3111 #ifdef COFF_IMAGE_WITH_PE
3112 /* Make sure we skip empty sections in a PE image. */
3113 if (current
->size
== 0)
3117 /* Align the sections in the file to the same boundary on
3118 which they are aligned in virtual memory. */
3119 #ifdef ALIGN_SECTIONS_IN_FILE
3120 if ((abfd
->flags
& EXEC_P
) != 0)
3122 /* Make sure this section is aligned on the right boundary - by
3123 padding the previous section up if necessary. */
3126 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3129 /* Make sure the file offset and the vma of .text/.data are at the
3130 same page offset, so that the file can be mmap'ed without being
3131 relocated. Failing that, AIX is able to load and execute the
3132 program, but it will be silently relocated (possible as
3133 executables are PIE). But the relocation is slightly costly and
3134 complexify the use of addr2line or gdb. So better to avoid it,
3135 like does the native linker. Usually gnu ld makes sure that
3136 the vma of .text is the file offset so this issue shouldn't
3137 appear unless you are stripping such an executable.
3139 AIX loader checks the text section alignment of (vma - filepos),
3140 and the native linker doesn't try to align the text sections.
3143 0 .text 000054cc 10000128 10000128 00000128 2**5
3144 CONTENTS, ALLOC, LOAD, CODE
3147 if (!strcmp (current
->name
, _TEXT
)
3148 || !strcmp (current
->name
, _DATA
))
3150 bfd_vma align
= 4096;
3151 bfd_vma sofar_off
= sofar
% align
;
3152 bfd_vma vma_off
= current
->vma
% align
;
3154 if (vma_off
> sofar_off
)
3155 sofar
+= vma_off
- sofar_off
;
3156 else if (vma_off
< sofar_off
)
3157 sofar
+= align
+ vma_off
- sofar_off
;
3160 if (previous
!= NULL
)
3161 previous
->size
+= sofar
- old_sofar
;
3166 /* In demand paged files the low order bits of the file offset
3167 must match the low order bits of the virtual address. */
3168 #ifdef COFF_PAGE_SIZE
3169 if ((abfd
->flags
& D_PAGED
) != 0
3170 && (current
->flags
& SEC_ALLOC
) != 0)
3171 sofar
+= (current
->vma
- (bfd_vma
) sofar
) % page_size
;
3173 current
->filepos
= sofar
;
3175 #ifdef COFF_IMAGE_WITH_PE
3176 /* Set the padded size. */
3177 current
->size
= (current
->size
+ page_size
- 1) & -page_size
;
3180 sofar
+= current
->size
;
3182 #ifdef ALIGN_SECTIONS_IN_FILE
3183 /* Make sure that this section is of the right size too. */
3184 if ((abfd
->flags
& EXEC_P
) == 0)
3186 bfd_size_type old_size
;
3188 old_size
= current
->size
;
3189 current
->size
= BFD_ALIGN (current
->size
,
3190 1 << current
->alignment_power
);
3191 align_adjust
= current
->size
!= old_size
;
3192 sofar
+= current
->size
- old_size
;
3197 sofar
= BFD_ALIGN (sofar
, 1 << current
->alignment_power
);
3198 align_adjust
= sofar
!= old_sofar
;
3199 current
->size
+= sofar
- old_sofar
;
3203 #ifdef COFF_IMAGE_WITH_PE
3204 /* For PE we need to make sure we pad out to the aligned
3205 size, in case the caller only writes out data to the
3207 if (pei_section_data (abfd
, current
)->virt_size
< current
->size
)
3208 align_adjust
= TRUE
;
3212 /* Force .lib sections to start at zero. The vma is then
3213 incremented in coff_set_section_contents. This is right for
3215 if (strcmp (current
->name
, _LIB
) == 0)
3216 bfd_set_section_vma (current
, 0);
3219 #ifdef ALIGN_SECTIONS_IN_FILE
3224 /* It is now safe to write to the output file. If we needed an
3225 alignment adjustment for the last section, then make sure that
3226 there is a byte at offset sofar. If there are no symbols and no
3227 relocs, then nothing follows the last section. If we don't force
3228 the last byte out, then the file may appear to be truncated. */
3234 if (bfd_seek (abfd
, sofar
- 1, SEEK_SET
) != 0
3235 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3239 /* Make sure the relocations are aligned. We don't need to make
3240 sure that this byte exists, because it will only matter if there
3241 really are relocs. */
3242 sofar
= BFD_ALIGN (sofar
, 1 << COFF_DEFAULT_SECTION_ALIGNMENT_POWER
);
3244 obj_relocbase (abfd
) = sofar
;
3245 abfd
->output_has_begun
= TRUE
;
3250 #ifdef COFF_IMAGE_WITH_PE
3252 static unsigned int pelength
;
3253 static unsigned int peheader
;
3256 coff_read_word (bfd
*abfd
, unsigned int *value
)
3261 status
= bfd_bread (b
, (bfd_size_type
) 2, abfd
);
3269 *value
= (unsigned int) b
[0];
3271 *value
= (unsigned int) (b
[0] + (b
[1] << 8));
3273 pelength
+= (unsigned int) status
;
3279 coff_compute_checksum (bfd
*abfd
)
3281 bfd_boolean more_data
;
3288 filepos
= (file_ptr
) 0;
3292 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0)
3295 more_data
= coff_read_word (abfd
, &value
);
3297 total
= 0xffff & (total
+ (total
>> 0x10));
3302 return (0xffff & (total
+ (total
>> 0x10)));
3306 coff_apply_checksum (bfd
*abfd
)
3308 unsigned int computed
;
3309 unsigned int checksum
= 0;
3311 if (bfd_seek (abfd
, 0x3c, SEEK_SET
) != 0)
3314 if (!coff_read_word (abfd
, &peheader
))
3317 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3321 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3323 if (bfd_seek (abfd
, peheader
, SEEK_SET
) != 0)
3326 computed
= coff_compute_checksum (abfd
);
3328 checksum
= computed
+ pelength
;
3330 if (bfd_seek (abfd
, peheader
+ 0x58, SEEK_SET
) != 0)
3333 bfd_bwrite (&checksum
, (bfd_size_type
) 4, abfd
);
3338 #endif /* COFF_IMAGE_WITH_PE */
3341 coff_write_object_contents (bfd
* abfd
)
3344 bfd_boolean hasrelocs
= FALSE
;
3345 bfd_boolean haslinno
= FALSE
;
3346 #ifdef COFF_IMAGE_WITH_PE
3347 bfd_boolean hasdebug
= FALSE
;
3350 file_ptr reloc_base
;
3351 file_ptr lineno_base
;
3353 unsigned long reloc_size
= 0, reloc_count
= 0;
3354 unsigned long lnno_size
= 0;
3355 bfd_boolean long_section_names
;
3356 asection
*text_sec
= NULL
;
3357 asection
*data_sec
= NULL
;
3358 asection
*bss_sec
= NULL
;
3359 struct internal_filehdr internal_f
;
3360 struct internal_aouthdr internal_a
;
3361 #ifdef COFF_LONG_SECTION_NAMES
3362 size_t string_size
= STRING_SIZE_SIZE
;
3365 bfd_set_error (bfd_error_system_call
);
3367 /* Make a pass through the symbol table to count line number entries and
3368 put them into the correct asections. */
3369 lnno_size
= coff_count_linenumbers (abfd
) * bfd_coff_linesz (abfd
);
3371 if (! abfd
->output_has_begun
)
3373 if (! coff_compute_section_file_positions (abfd
))
3377 reloc_base
= obj_relocbase (abfd
);
3379 /* Work out the size of the reloc and linno areas. */
3381 for (current
= abfd
->sections
; current
!= NULL
; current
=
3385 /* We store the actual reloc count in the first reloc's addr. */
3386 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3389 reloc_count
+= current
->reloc_count
;
3392 reloc_size
= reloc_count
* bfd_coff_relsz (abfd
);
3394 lineno_base
= reloc_base
+ reloc_size
;
3395 sym_base
= lineno_base
+ lnno_size
;
3397 /* Indicate in each section->line_filepos its actual file address. */
3398 for (current
= abfd
->sections
; current
!= NULL
; current
=
3401 if (current
->lineno_count
)
3403 current
->line_filepos
= lineno_base
;
3404 current
->moving_line_filepos
= lineno_base
;
3405 lineno_base
+= current
->lineno_count
* bfd_coff_linesz (abfd
);
3408 current
->line_filepos
= 0;
3410 if (current
->reloc_count
)
3412 current
->rel_filepos
= reloc_base
;
3413 reloc_base
+= current
->reloc_count
* bfd_coff_relsz (abfd
);
3415 /* Extra reloc to hold real count. */
3416 if (obj_pe (abfd
) && current
->reloc_count
>= 0xffff)
3417 reloc_base
+= bfd_coff_relsz (abfd
);
3421 current
->rel_filepos
= 0;
3424 /* Write section headers to the file. */
3425 internal_f
.f_nscns
= 0;
3427 if ((abfd
->flags
& EXEC_P
) != 0)
3428 scn_base
= bfd_coff_filhsz (abfd
) + bfd_coff_aoutsz (abfd
);
3431 scn_base
= bfd_coff_filhsz (abfd
);
3434 if (xcoff_data (abfd
)->full_aouthdr
)
3435 scn_base
+= bfd_coff_aoutsz (abfd
);
3437 scn_base
+= SMALL_AOUTSZ
;
3442 if (bfd_seek (abfd
, scn_base
, SEEK_SET
) != 0)
3445 long_section_names
= FALSE
;
3446 for (current
= abfd
->sections
;
3448 current
= current
->next
)
3450 struct internal_scnhdr section
;
3451 #ifdef COFF_IMAGE_WITH_PE
3452 bfd_boolean is_reloc_section
= FALSE
;
3454 if (strcmp (current
->name
, DOT_RELOC
) == 0)
3456 is_reloc_section
= TRUE
;
3458 pe_data (abfd
)->has_reloc_section
= 1;
3462 internal_f
.f_nscns
++;
3464 strncpy (section
.s_name
, current
->name
, SCNNMLEN
);
3466 #ifdef COFF_LONG_SECTION_NAMES
3467 /* Handle long section names as in PE. This must be compatible
3468 with the code in coff_write_symbols and _bfd_coff_final_link. */
3469 if (bfd_coff_long_section_names (abfd
))
3473 len
= strlen (current
->name
);
3476 /* The s_name field is defined to be NUL-padded but need not be
3477 NUL-terminated. We use a temporary buffer so that we can still
3478 sprintf all eight chars without splatting a terminating NUL
3479 over the first byte of the following member (s_paddr). */
3480 /* PR 21096: The +20 is to stop a bogus warning from gcc7 about
3481 a possible buffer overflow. */
3482 char s_name_buf
[SCNNMLEN
+ 1 + 20];
3484 /* An inherent limitation of the /nnnnnnn notation used to indicate
3485 the offset of the long name in the string table is that we
3486 cannot address entries beyone the ten million byte boundary. */
3487 if (string_size
>= 10000000)
3489 bfd_set_error (bfd_error_file_too_big
);
3491 /* xgettext:c-format */
3492 (_("%pB: section %pA: string table overflow at offset %ld"),
3493 abfd
, current
, (unsigned long) string_size
);
3497 /* We do not need to use snprintf here as we have already verfied
3498 that string_size is not too big, plus we have an overlarge
3499 buffer, just in case. */
3500 sprintf (s_name_buf
, "/%lu", (unsigned long) string_size
);
3501 /* Then strncpy takes care of any padding for us. */
3502 strncpy (section
.s_name
, s_name_buf
, SCNNMLEN
);
3503 string_size
+= len
+ 1;
3504 long_section_names
= TRUE
;
3510 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
3511 Ian Taylor <ian@cygnus.com>. */
3512 if (strcmp (current
->name
, _LIB
) == 0)
3513 section
.s_vaddr
= 0;
3516 section
.s_vaddr
= current
->vma
;
3517 section
.s_paddr
= current
->lma
;
3518 section
.s_size
= current
->size
;
3519 #ifdef coff_get_section_load_page
3520 section
.s_page
= coff_get_section_load_page (current
);
3526 section
.s_paddr
= 0;
3528 #ifdef COFF_IMAGE_WITH_PE
3529 /* Reminder: s_paddr holds the virtual size of the section. */
3530 if (coff_section_data (abfd
, current
) != NULL
3531 && pei_section_data (abfd
, current
) != NULL
)
3532 section
.s_paddr
= pei_section_data (abfd
, current
)->virt_size
;
3534 section
.s_paddr
= 0;
3537 /* If this section has no size or is unloadable then the scnptr
3539 if (current
->size
== 0
3540 || (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0)
3541 section
.s_scnptr
= 0;
3543 section
.s_scnptr
= current
->filepos
;
3545 section
.s_relptr
= current
->rel_filepos
;
3546 section
.s_lnnoptr
= current
->line_filepos
;
3547 section
.s_nreloc
= current
->reloc_count
;
3548 section
.s_nlnno
= current
->lineno_count
;
3549 #ifndef COFF_IMAGE_WITH_PE
3550 /* In PEI, relocs come in the .reloc section. */
3551 if (current
->reloc_count
!= 0)
3554 if (current
->lineno_count
!= 0)
3556 #ifdef COFF_IMAGE_WITH_PE
3557 if ((current
->flags
& SEC_DEBUGGING
) != 0
3558 && ! is_reloc_section
)
3564 /* Indicate the use of an XCOFF overflow section header. */
3565 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3567 section
.s_nreloc
= 0xffff;
3568 section
.s_nlnno
= 0xffff;
3573 section
.s_flags
= sec_to_styp_flags (current
->name
, current
->flags
);
3575 if (!strcmp (current
->name
, _TEXT
))
3577 else if (!strcmp (current
->name
, _DATA
))
3579 else if (!strcmp (current
->name
, _BSS
))
3582 #ifdef COFF_ENCODE_ALIGNMENT
3583 COFF_ENCODE_ALIGNMENT(section
, current
->alignment_power
);
3584 if ((unsigned int)COFF_DECODE_ALIGNMENT(section
.s_flags
)
3585 != current
->alignment_power
)
3587 bfd_boolean warn
= coff_data (abfd
)->link_info
3588 && !bfd_link_relocatable (coff_data (abfd
)->link_info
);
3591 /* xgettext:c-format */
3592 (_("%pB:%s section %s: alignment 2**%u not representable"),
3593 abfd
, warn
? " warning:" : "", current
->name
,
3594 current
->alignment_power
);
3597 bfd_set_error (bfd_error_nonrepresentable_section
);
3603 #ifdef COFF_IMAGE_WITH_PE
3604 /* Suppress output of the sections if they are null. ld
3605 includes the bss and data sections even if there is no size
3606 assigned to them. NT loader doesn't like it if these section
3607 headers are included if the sections themselves are not
3608 needed. See also coff_compute_section_file_positions. */
3609 if (section
.s_size
== 0)
3610 internal_f
.f_nscns
--;
3615 bfd_size_type amt
= bfd_coff_scnhsz (abfd
);
3617 if (coff_swap_scnhdr_out (abfd
, §ion
, &buff
) == 0
3618 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3623 /* PE stores COMDAT section information in the symbol table. If
3624 this section is supposed to have some COMDAT info, track down
3625 the symbol in the symbol table and modify it. */
3626 if ((current
->flags
& SEC_LINK_ONCE
) != 0)
3628 unsigned int i
, count
;
3630 coff_symbol_type
*csym
= NULL
;
3634 count
= bfd_get_symcount (abfd
);
3635 for (i
= 0, psym
= abfd
->outsymbols
; i
< count
; i
++, psym
++)
3637 if ((*psym
)->section
!= current
)
3640 /* Remember the location of the first symbol in this
3642 if (psymsec
== NULL
)
3645 /* See if this is the section symbol. */
3646 if (strcmp ((*psym
)->name
, current
->name
) == 0)
3648 csym
= coff_symbol_from (*psym
);
3650 || csym
->native
== NULL
3651 || ! csym
->native
->is_sym
3652 || csym
->native
->u
.syment
.n_numaux
< 1
3653 || csym
->native
->u
.syment
.n_sclass
!= C_STAT
3654 || csym
->native
->u
.syment
.n_type
!= T_NULL
)
3657 /* Here *PSYM is the section symbol for CURRENT. */
3664 Note that we might not if we're converting the file from
3665 some other object file format. */
3668 combined_entry_type
*aux
;
3670 /* We don't touch the x_checksum field. The
3671 x_associated field is not currently supported. */
3673 aux
= csym
->native
+ 1;
3674 BFD_ASSERT (! aux
->is_sym
);
3675 switch (current
->flags
& SEC_LINK_DUPLICATES
)
3677 case SEC_LINK_DUPLICATES_DISCARD
:
3678 aux
->u
.auxent
.x_scn
.x_comdat
= IMAGE_COMDAT_SELECT_ANY
;
3681 case SEC_LINK_DUPLICATES_ONE_ONLY
:
3682 aux
->u
.auxent
.x_scn
.x_comdat
=
3683 IMAGE_COMDAT_SELECT_NODUPLICATES
;
3686 case SEC_LINK_DUPLICATES_SAME_SIZE
:
3687 aux
->u
.auxent
.x_scn
.x_comdat
=
3688 IMAGE_COMDAT_SELECT_SAME_SIZE
;
3691 case SEC_LINK_DUPLICATES_SAME_CONTENTS
:
3692 aux
->u
.auxent
.x_scn
.x_comdat
=
3693 IMAGE_COMDAT_SELECT_EXACT_MATCH
;
3697 /* The COMDAT symbol must be the first symbol from this
3698 section in the symbol table. In order to make this
3699 work, we move the COMDAT symbol before the first
3700 symbol we found in the search above. It's OK to
3701 rearrange the symbol table at this point, because
3702 coff_renumber_symbols is going to rearrange it
3703 further and fix up all the aux entries. */
3704 if (psym
!= psymsec
)
3710 for (pcopy
= psym
; pcopy
> psymsec
; pcopy
--)
3711 pcopy
[0] = pcopy
[-1];
3716 #endif /* COFF_WITH_PE */
3721 /* XCOFF handles overflows in the reloc and line number count fields
3722 by creating a new section header to hold the correct values. */
3723 for (current
= abfd
->sections
; current
!= NULL
; current
= current
->next
)
3725 if (current
->reloc_count
>= 0xffff || current
->lineno_count
>= 0xffff)
3727 struct internal_scnhdr scnhdr
;
3731 internal_f
.f_nscns
++;
3732 memcpy (scnhdr
.s_name
, ".ovrflo", 8);
3733 scnhdr
.s_paddr
= current
->reloc_count
;
3734 scnhdr
.s_vaddr
= current
->lineno_count
;
3736 scnhdr
.s_scnptr
= 0;
3737 scnhdr
.s_relptr
= current
->rel_filepos
;
3738 scnhdr
.s_lnnoptr
= current
->line_filepos
;
3739 scnhdr
.s_nreloc
= current
->target_index
;
3740 scnhdr
.s_nlnno
= current
->target_index
;
3741 scnhdr
.s_flags
= STYP_OVRFLO
;
3742 amt
= bfd_coff_scnhsz (abfd
);
3743 if (coff_swap_scnhdr_out (abfd
, &scnhdr
, &buff
) == 0
3744 || bfd_bwrite (& buff
, amt
, abfd
) != amt
)
3751 /* OK, now set up the filehdr... */
3753 /* Don't include the internal abs section in the section count */
3755 /* We will NOT put a fucking timestamp in the header here. Every time you
3756 put it back, I will come in and take it out again. I'm sorry. This
3757 field does not belong here. We fill it with a 0 so it compares the
3758 same but is not a reasonable time. -- gnu@cygnus.com */
3759 internal_f
.f_timdat
= 0;
3760 internal_f
.f_flags
= 0;
3762 if (abfd
->flags
& EXEC_P
)
3763 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3766 internal_f
.f_opthdr
= 0;
3769 if (xcoff_data (abfd
)->full_aouthdr
)
3770 internal_f
.f_opthdr
= bfd_coff_aoutsz (abfd
);
3772 internal_f
.f_opthdr
= SMALL_AOUTSZ
;
3778 internal_f
.f_flags
|= F_RELFLG
;
3780 internal_f
.f_flags
|= F_LNNO
;
3781 if (abfd
->flags
& EXEC_P
)
3782 internal_f
.f_flags
|= F_EXEC
;
3783 #ifdef COFF_IMAGE_WITH_PE
3785 internal_f
.f_flags
|= IMAGE_FILE_DEBUG_STRIPPED
;
3786 if (pe_data (abfd
)->real_flags
& IMAGE_FILE_LARGE_ADDRESS_AWARE
)
3787 internal_f
.f_flags
|= IMAGE_FILE_LARGE_ADDRESS_AWARE
;
3790 #ifndef COFF_WITH_pex64
3792 internal_f
.f_flags
|= IMAGE_FILE_32BIT_MACHINE
;
3794 if (bfd_little_endian (abfd
))
3795 internal_f
.f_flags
|= F_AR32WR
;
3797 internal_f
.f_flags
|= F_AR32W
;
3802 /* Target id is used in TI COFF v1 and later; COFF0 won't use this field,
3803 but it doesn't hurt to set it internally. */
3804 internal_f
.f_target_id
= TI_TARGET_ID
;
3807 /* FIXME, should do something about the other byte orders and
3811 if ((abfd
->flags
& DYNAMIC
) != 0)
3812 internal_f
.f_flags
|= F_SHROBJ
;
3813 if (bfd_get_section_by_name (abfd
, _LOADER
) != NULL
)
3814 internal_f
.f_flags
|= F_DYNLOAD
;
3817 memset (&internal_a
, 0, sizeof internal_a
);
3819 /* Set up architecture-dependent stuff. */
3821 unsigned int magic
= 0;
3822 unsigned short flags
= 0;
3824 coff_set_flags (abfd
, &magic
, &flags
);
3825 internal_f
.f_magic
= magic
;
3826 internal_f
.f_flags
|= flags
;
3827 /* ...and the "opt"hdr... */
3829 #ifdef TICOFF_AOUT_MAGIC
3830 internal_a
.magic
= TICOFF_AOUT_MAGIC
;
3831 #define __A_MAGIC_SET__
3835 #define __A_MAGIC_SET__
3836 internal_a
.magic
= ZMAGIC
;
3840 #define __A_MAGIC_SET__
3841 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3844 #if defined MCORE_PE
3845 #define __A_MAGIC_SET__
3846 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR_MAGIC
;
3850 #define __A_MAGIC_SET__
3852 internal_a
.magic
= LYNXCOFFMAGIC
;
3854 internal_a
.magic
= IMAGE_NT_OPTIONAL_HDR64_MAGIC
;
3856 internal_a
.magic
= ZMAGIC
;
3861 #define __A_MAGIC_SET__
3862 internal_a
.magic
= PE32PMAGIC
;
3866 #define __A_MAGIC_SET__
3868 internal_a
.magic
= LYNXCOFFMAGIC
;
3873 #define __A_MAGIC_SET__
3874 internal_a
.magic
= (abfd
->flags
& D_PAGED
) ? RS6K_AOUTHDR_ZMAGIC
:
3875 (abfd
->flags
& WP_TEXT
) ? RS6K_AOUTHDR_NMAGIC
:
3876 RS6K_AOUTHDR_OMAGIC
;
3879 #if defined(SH) && defined(COFF_WITH_PE)
3880 #define __A_MAGIC_SET__
3881 internal_a
.magic
= SH_PE_MAGIC
;
3884 #if defined(MIPS) && defined(COFF_WITH_PE)
3885 #define __A_MAGIC_SET__
3886 internal_a
.magic
= MIPS_PE_MAGIC
;
3889 #ifndef __A_MAGIC_SET__
3890 #include "Your aouthdr magic number is not being set!"
3892 #undef __A_MAGIC_SET__
3896 /* FIXME: Does anybody ever set this to another value? */
3897 internal_a
.vstamp
= 0;
3899 /* Now should write relocs, strings, syms. */
3900 obj_sym_filepos (abfd
) = sym_base
;
3902 if (bfd_get_symcount (abfd
) != 0)
3906 if (!coff_renumber_symbols (abfd
, &firstundef
))
3908 coff_mangle_symbols (abfd
);
3909 if (! coff_write_symbols (abfd
))
3911 if (! coff_write_linenumbers (abfd
))
3913 if (! coff_write_relocs (abfd
, firstundef
))
3916 #ifdef COFF_LONG_SECTION_NAMES
3917 else if (long_section_names
&& ! obj_coff_strings_written (abfd
))
3919 /* If we have long section names we have to write out the string
3920 table even if there are no symbols. */
3921 if (! coff_write_symbols (abfd
))
3925 #ifdef COFF_IMAGE_WITH_PE
3927 else if ((abfd
->flags
& EXEC_P
) != 0)
3931 /* PowerPC PE appears to require that all executable files be
3932 rounded up to the page size. */
3935 (file_ptr
) BFD_ALIGN (sym_base
, COFF_PAGE_SIZE
) - 1,
3937 || bfd_bwrite (&b
, (bfd_size_type
) 1, abfd
) != 1)
3943 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
3944 backend linker, and obj_raw_syment_count is not valid until after
3945 coff_write_symbols is called. */
3946 if (obj_raw_syment_count (abfd
) != 0)
3948 internal_f
.f_symptr
= sym_base
;
3950 /* AIX appears to require that F_RELFLG not be set if there are
3951 local symbols but no relocations. */
3952 internal_f
.f_flags
&=~ F_RELFLG
;
3957 if (long_section_names
)
3958 internal_f
.f_symptr
= sym_base
;
3960 internal_f
.f_symptr
= 0;
3961 internal_f
.f_flags
|= F_LSYMS
;
3966 internal_a
.tsize
= text_sec
->size
;
3967 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
3971 internal_a
.dsize
= data_sec
->size
;
3972 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
3976 internal_a
.bsize
= bss_sec
->size
;
3977 if (internal_a
.bsize
&& bss_sec
->vma
< internal_a
.data_start
)
3978 internal_a
.data_start
= bss_sec
->vma
;
3981 internal_a
.entry
= bfd_get_start_address (abfd
);
3982 internal_f
.f_nsyms
= obj_raw_syment_count (abfd
);
3985 if (xcoff_data (abfd
)->full_aouthdr
)
3988 asection
*loader_sec
;
3990 internal_a
.vstamp
= 1;
3992 internal_a
.o_snentry
= xcoff_data (abfd
)->snentry
;
3993 if (internal_a
.o_snentry
== 0)
3994 internal_a
.entry
= (bfd_vma
) -1;
3996 if (text_sec
!= NULL
)
3998 internal_a
.o_sntext
= text_sec
->target_index
;
3999 internal_a
.o_algntext
= bfd_section_alignment (text_sec
);
4003 internal_a
.o_sntext
= 0;
4004 internal_a
.o_algntext
= 0;
4006 if (data_sec
!= NULL
)
4008 internal_a
.o_sndata
= data_sec
->target_index
;
4009 internal_a
.o_algndata
= bfd_section_alignment (data_sec
);
4013 internal_a
.o_sndata
= 0;
4014 internal_a
.o_algndata
= 0;
4016 loader_sec
= bfd_get_section_by_name (abfd
, ".loader");
4017 if (loader_sec
!= NULL
)
4018 internal_a
.o_snloader
= loader_sec
->target_index
;
4020 internal_a
.o_snloader
= 0;
4021 if (bss_sec
!= NULL
)
4022 internal_a
.o_snbss
= bss_sec
->target_index
;
4024 internal_a
.o_snbss
= 0;
4026 toc
= xcoff_data (abfd
)->toc
;
4027 internal_a
.o_toc
= toc
;
4028 internal_a
.o_sntoc
= xcoff_data (abfd
)->sntoc
;
4030 internal_a
.o_modtype
= xcoff_data (abfd
)->modtype
;
4031 if (xcoff_data (abfd
)->cputype
!= -1)
4032 internal_a
.o_cputype
= xcoff_data (abfd
)->cputype
;
4035 switch (bfd_get_arch (abfd
))
4037 case bfd_arch_rs6000
:
4038 internal_a
.o_cputype
= 4;
4040 case bfd_arch_powerpc
:
4041 if (bfd_get_mach (abfd
) == bfd_mach_ppc
)
4042 internal_a
.o_cputype
= 3;
4044 internal_a
.o_cputype
= 1;
4050 internal_a
.o_maxstack
= xcoff_data (abfd
)->maxstack
;
4051 internal_a
.o_maxdata
= xcoff_data (abfd
)->maxdata
;
4057 /* After object contents are finalized so we can compute a reasonable hash,
4058 but before header is written so we can update it to point to debug directory. */
4059 struct pe_tdata
*pe
= pe_data (abfd
);
4061 if (pe
->build_id
.after_write_object_contents
!= NULL
)
4062 (*pe
->build_id
.after_write_object_contents
) (abfd
);
4066 /* Now write header. */
4067 if (bfd_seek (abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
4072 bfd_size_type amount
= bfd_coff_filhsz (abfd
);
4074 buff
= (char *) bfd_malloc (amount
);
4078 bfd_coff_swap_filehdr_out (abfd
, & internal_f
, buff
);
4079 amount
= bfd_bwrite (buff
, amount
, abfd
);
4083 if (amount
!= bfd_coff_filhsz (abfd
))
4087 if (abfd
->flags
& EXEC_P
)
4089 /* Note that peicode.h fills in a PEAOUTHDR, not an AOUTHDR.
4090 include/coff/pe.h sets AOUTSZ == sizeof (PEAOUTHDR)). */
4092 bfd_size_type amount
= bfd_coff_aoutsz (abfd
);
4094 buff
= (char *) bfd_malloc (amount
);
4098 coff_swap_aouthdr_out (abfd
, & internal_a
, buff
);
4099 amount
= bfd_bwrite (buff
, amount
, abfd
);
4103 if (amount
!= bfd_coff_aoutsz (abfd
))
4106 #ifdef COFF_IMAGE_WITH_PE
4107 if (! coff_apply_checksum (abfd
))
4117 /* XCOFF seems to always write at least a small a.out header. */
4118 coff_swap_aouthdr_out (abfd
, & internal_a
, & buff
);
4119 if (xcoff_data (abfd
)->full_aouthdr
)
4120 size
= bfd_coff_aoutsz (abfd
);
4122 size
= SMALL_AOUTSZ
;
4123 if (bfd_bwrite (& buff
, (bfd_size_type
) size
, abfd
) != size
)
4132 coff_set_section_contents (bfd
* abfd
,
4134 const void * location
,
4136 bfd_size_type count
)
4138 if (! abfd
->output_has_begun
) /* Set by bfd.c handler. */
4140 if (! coff_compute_section_file_positions (abfd
))
4144 #if defined(_LIB) && !defined(TARG_AUX)
4145 /* The physical address field of a .lib section is used to hold the
4146 number of shared libraries in the section. This code counts the
4147 number of sections being written, and increments the lma field
4150 I have found no documentation on the contents of this section.
4151 Experimentation indicates that the section contains zero or more
4152 records, each of which has the following structure:
4154 - a (four byte) word holding the length of this record, in words,
4155 - a word that always seems to be set to "2",
4156 - the path to a shared library, null-terminated and then padded
4157 to a whole word boundary.
4159 bfd_assert calls have been added to alert if an attempt is made
4160 to write a section which doesn't follow these assumptions. The
4161 code has been tested on ISC 4.1 by me, and on SCO by Robert Lipe
4162 <robertl@arnet.com> (Thanks!).
4164 Gvran Uddeborg <gvran@uddeborg.pp.se>. */
4165 if (strcmp (section
->name
, _LIB
) == 0)
4167 bfd_byte
*rec
, *recend
;
4169 rec
= (bfd_byte
*) location
;
4170 recend
= rec
+ count
;
4171 while (rec
< recend
)
4174 rec
+= bfd_get_32 (abfd
, rec
) * 4;
4177 BFD_ASSERT (rec
== recend
);
4181 /* Don't write out bss sections - one way to do this is to
4182 see if the filepos has not been set. */
4183 if (section
->filepos
== 0)
4186 if (bfd_seek (abfd
, section
->filepos
+ offset
, SEEK_SET
) != 0)
4192 return bfd_bwrite (location
, count
, abfd
) == count
;
4196 buy_and_read (bfd
*abfd
, file_ptr where
,
4197 bfd_size_type nmemb
, bfd_size_type size
)
4201 if (_bfd_mul_overflow (nmemb
, size
, &amt
))
4203 bfd_set_error (bfd_error_file_too_big
);
4206 if (bfd_seek (abfd
, where
, SEEK_SET
) != 0)
4208 return _bfd_alloc_and_read (abfd
, amt
, amt
);
4215 Creating the linenumber table is done by reading in the entire
4216 coff linenumber table, and creating another table for internal use.
4218 A coff linenumber table is structured so that each function
4219 is marked as having a line number of 0. Each line within the
4220 function is an offset from the first line in the function. The
4221 base of the line number information for the table is stored in
4222 the symbol associated with the function.
4224 Note: The PE format uses line number 0 for a flag indicating a
4227 The information is copied from the external to the internal
4228 table, and each symbol which marks a function is marked by
4231 How does this work ?
4235 coff_sort_func_alent (const void * arg1
, const void * arg2
)
4237 const alent
*al1
= *(const alent
**) arg1
;
4238 const alent
*al2
= *(const alent
**) arg2
;
4239 const coff_symbol_type
*s1
= (const coff_symbol_type
*) (al1
->u
.sym
);
4240 const coff_symbol_type
*s2
= (const coff_symbol_type
*) (al2
->u
.sym
);
4242 if (s1
== NULL
|| s2
== NULL
)
4244 if (s1
->symbol
.value
< s2
->symbol
.value
)
4246 else if (s1
->symbol
.value
> s2
->symbol
.value
)
4253 coff_slurp_line_table (bfd
*abfd
, asection
*asect
)
4255 LINENO
*native_lineno
;
4256 alent
*lineno_cache
;
4257 unsigned int counter
;
4259 bfd_vma prev_offset
= 0;
4260 bfd_boolean ordered
= TRUE
;
4261 unsigned int nbr_func
;
4263 bfd_boolean have_func
;
4264 bfd_boolean ret
= TRUE
;
4267 if (asect
->lineno_count
== 0)
4270 BFD_ASSERT (asect
->lineno
== NULL
);
4272 if (asect
->lineno_count
> asect
->size
)
4275 (_("%pB: warning: line number count (%#lx) exceeds section size (%#lx)"),
4276 abfd
, (unsigned long) asect
->lineno_count
, (unsigned long) asect
->size
);
4280 if (_bfd_mul_overflow (asect
->lineno_count
+ 1, sizeof (alent
), &amt
))
4282 bfd_set_error (bfd_error_file_too_big
);
4285 lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
);
4286 if (lineno_cache
== NULL
)
4289 native_lineno
= (LINENO
*) buy_and_read (abfd
, asect
->line_filepos
,
4290 asect
->lineno_count
,
4291 bfd_coff_linesz (abfd
));
4292 if (native_lineno
== NULL
)
4295 (_("%pB: warning: line number table read failed"), abfd
);
4296 bfd_release (abfd
, lineno_cache
);
4300 cache_ptr
= lineno_cache
;
4301 asect
->lineno
= lineno_cache
;
4302 src
= native_lineno
;
4306 for (counter
= 0; counter
< asect
->lineno_count
; counter
++, src
++)
4308 struct internal_lineno dst
;
4310 bfd_coff_swap_lineno_in (abfd
, src
, &dst
);
4311 cache_ptr
->line_number
= dst
.l_lnno
;
4312 /* Appease memory checkers that get all excited about
4313 uninitialised memory when copying alents if u.offset is
4314 larger than u.sym. (64-bit BFD on 32-bit host.) */
4315 memset (&cache_ptr
->u
, 0, sizeof (cache_ptr
->u
));
4317 if (cache_ptr
->line_number
== 0)
4319 combined_entry_type
* ent
;
4320 unsigned long symndx
;
4321 coff_symbol_type
*sym
;
4324 symndx
= dst
.l_addr
.l_symndx
;
4325 if (symndx
>= obj_raw_syment_count (abfd
))
4328 /* xgettext:c-format */
4329 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4330 abfd
, symndx
, counter
);
4331 cache_ptr
->line_number
= -1;
4336 ent
= obj_raw_syments (abfd
) + symndx
;
4337 /* FIXME: We should not be casting between ints and
4338 pointers like this. */
4342 /* xgettext:c-format */
4343 (_("%pB: warning: illegal symbol index 0x%lx in line number entry %d"),
4344 abfd
, symndx
, counter
);
4345 cache_ptr
->line_number
= -1;
4349 sym
= (coff_symbol_type
*) (ent
->u
.syment
._n
._n_n
._n_zeroes
);
4351 /* PR 17512 file: 078-10659-0.004 */
4352 if (sym
< obj_symbols (abfd
)
4353 || sym
>= obj_symbols (abfd
) + bfd_get_symcount (abfd
))
4356 /* xgettext:c-format */
4357 (_("%pB: warning: illegal symbol in line number entry %d"),
4359 cache_ptr
->line_number
= -1;
4366 cache_ptr
->u
.sym
= (asymbol
*) sym
;
4367 if (sym
->lineno
!= NULL
)
4369 /* xgettext:c-format */
4370 (_("%pB: warning: duplicate line number information for `%s'"),
4371 abfd
, bfd_asymbol_name (&sym
->symbol
));
4373 sym
->lineno
= cache_ptr
;
4374 if (sym
->symbol
.value
< prev_offset
)
4376 prev_offset
= sym
->symbol
.value
;
4378 else if (!have_func
)
4379 /* Drop line information that has no associated function.
4380 PR 17521: file: 078-10659-0.004. */
4383 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
- bfd_section_vma (asect
);
4387 asect
->lineno_count
= cache_ptr
- lineno_cache
;
4388 memset (cache_ptr
, 0, sizeof (*cache_ptr
));
4389 bfd_release (abfd
, native_lineno
);
4391 /* On some systems (eg AIX5.3) the lineno table may not be sorted. */
4394 /* Sort the table. */
4396 alent
*n_lineno_cache
;
4398 /* Create a table of functions. */
4399 if (_bfd_mul_overflow (nbr_func
, sizeof (alent
*), &amt
))
4401 bfd_set_error (bfd_error_file_too_big
);
4404 else if ((func_table
= (alent
**) bfd_alloc (abfd
, amt
)) != NULL
)
4406 alent
**p
= func_table
;
4409 for (i
= 0; i
< asect
->lineno_count
; i
++)
4410 if (lineno_cache
[i
].line_number
== 0)
4411 *p
++ = &lineno_cache
[i
];
4413 BFD_ASSERT ((unsigned int) (p
- func_table
) == nbr_func
);
4415 /* Sort by functions. */
4416 qsort (func_table
, nbr_func
, sizeof (alent
*), coff_sort_func_alent
);
4418 /* Create the new sorted table. */
4419 if (_bfd_mul_overflow (asect
->lineno_count
, sizeof (alent
), &amt
))
4421 bfd_set_error (bfd_error_file_too_big
);
4424 else if ((n_lineno_cache
= (alent
*) bfd_alloc (abfd
, amt
)) != NULL
)
4426 alent
*n_cache_ptr
= n_lineno_cache
;
4428 for (i
= 0; i
< nbr_func
; i
++)
4430 coff_symbol_type
*sym
;
4431 alent
*old_ptr
= func_table
[i
];
4433 /* Update the function entry. */
4434 sym
= (coff_symbol_type
*) old_ptr
->u
.sym
;
4435 /* PR binutils/17512: Point the lineno to where
4436 this entry will be after the memcpy below. */
4437 sym
->lineno
= lineno_cache
+ (n_cache_ptr
- n_lineno_cache
);
4438 /* Copy the function and line number entries. */
4440 *n_cache_ptr
++ = *old_ptr
++;
4441 while (old_ptr
->line_number
!= 0);
4444 memcpy (lineno_cache
, n_lineno_cache
,
4445 asect
->lineno_count
* sizeof (alent
));
4449 bfd_release (abfd
, func_table
);
4458 /* Slurp in the symbol table, converting it to generic form. Note
4459 that if coff_relocate_section is defined, the linker will read
4460 symbols via coff_link_add_symbols, rather than via this routine. */
4463 coff_slurp_symbol_table (bfd
* abfd
)
4465 combined_entry_type
*native_symbols
;
4466 coff_symbol_type
*cached_area
;
4467 unsigned int *table_ptr
;
4468 unsigned int number_of_symbols
= 0;
4469 bfd_boolean ret
= TRUE
;
4472 if (obj_symbols (abfd
))
4475 /* Read in the symbol table. */
4476 if ((native_symbols
= coff_get_normalized_symtab (abfd
)) == NULL
)
4479 /* Allocate enough room for all the symbols in cached form. */
4480 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4481 sizeof (*cached_area
), &amt
))
4483 bfd_set_error (bfd_error_file_too_big
);
4486 cached_area
= (coff_symbol_type
*) bfd_alloc (abfd
, amt
);
4487 if (cached_area
== NULL
)
4490 if (_bfd_mul_overflow (obj_raw_syment_count (abfd
),
4491 sizeof (*table_ptr
), &amt
))
4493 bfd_set_error (bfd_error_file_too_big
);
4496 table_ptr
= (unsigned int *) bfd_zalloc (abfd
, amt
);
4497 if (table_ptr
== NULL
)
4501 coff_symbol_type
*dst
= cached_area
;
4502 unsigned int last_native_index
= obj_raw_syment_count (abfd
);
4503 unsigned int this_index
= 0;
4505 while (this_index
< last_native_index
)
4507 combined_entry_type
*src
= native_symbols
+ this_index
;
4508 table_ptr
[this_index
] = number_of_symbols
;
4510 dst
->symbol
.the_bfd
= abfd
;
4511 BFD_ASSERT (src
->is_sym
);
4512 dst
->symbol
.name
= (char *) (src
->u
.syment
._n
._n_n
._n_offset
);
4513 /* We use the native name field to point to the cached field. */
4514 src
->u
.syment
._n
._n_n
._n_zeroes
= (bfd_hostptr_t
) dst
;
4515 dst
->symbol
.section
= coff_section_from_bfd_index (abfd
,
4516 src
->u
.syment
.n_scnum
);
4517 dst
->symbol
.flags
= 0;
4518 /* PR 17512: file: 079-7098-0.001:0.1. */
4519 dst
->symbol
.value
= 0;
4520 dst
->done_lineno
= FALSE
;
4522 switch (src
->u
.syment
.n_sclass
)
4528 case C_THUMBEXTFUNC
:
4532 #if ! defined _AIX52 && ! defined AIX_WEAK_SUPPORT
4537 case C_SYSTEM
: /* System Wide variable. */
4540 /* In PE, 0x68 (104) denotes a section symbol. */
4542 /* In PE, 0x69 (105) denotes a weak external symbol. */
4545 switch (coff_classify_symbol (abfd
, &src
->u
.syment
))
4547 case COFF_SYMBOL_GLOBAL
:
4548 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
4549 #if defined COFF_WITH_PE
4550 /* PE sets the symbol to a value relative to the
4551 start of the section. */
4552 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4554 dst
->symbol
.value
= (src
->u
.syment
.n_value
4555 - dst
->symbol
.section
->vma
);
4557 if (ISFCN ((src
->u
.syment
.n_type
)))
4558 /* A function ext does not go at the end of a
4560 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4563 case COFF_SYMBOL_COMMON
:
4564 dst
->symbol
.section
= bfd_com_section_ptr
;
4565 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4568 case COFF_SYMBOL_UNDEFINED
:
4569 dst
->symbol
.section
= bfd_und_section_ptr
;
4570 dst
->symbol
.value
= 0;
4573 case COFF_SYMBOL_PE_SECTION
:
4574 dst
->symbol
.flags
|= BSF_EXPORT
| BSF_SECTION_SYM
;
4575 dst
->symbol
.value
= 0;
4578 case COFF_SYMBOL_LOCAL
:
4579 dst
->symbol
.flags
= BSF_LOCAL
;
4580 #if defined COFF_WITH_PE
4581 /* PE sets the symbol to a value relative to the
4582 start of the section. */
4583 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4585 dst
->symbol
.value
= (src
->u
.syment
.n_value
4586 - dst
->symbol
.section
->vma
);
4588 if (ISFCN ((src
->u
.syment
.n_type
)))
4589 dst
->symbol
.flags
|= BSF_NOT_AT_END
| BSF_FUNCTION
;
4594 /* A symbol with a csect entry should not go at the end. */
4595 if (src
->u
.syment
.n_numaux
> 0)
4596 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
4600 if (src
->u
.syment
.n_sclass
== C_NT_WEAK
)
4601 dst
->symbol
.flags
|= BSF_WEAK
;
4603 if (src
->u
.syment
.n_sclass
== C_SECTION
4604 && src
->u
.syment
.n_scnum
> 0)
4605 dst
->symbol
.flags
= BSF_LOCAL
;
4607 if (src
->u
.syment
.n_sclass
== C_WEAKEXT
4609 || src
->u
.syment
.n_sclass
== C_AIX_WEAKEXT
4612 dst
->symbol
.flags
|= BSF_WEAK
;
4616 case C_STAT
: /* Static. */
4618 case C_THUMBSTAT
: /* Thumb static. */
4619 case C_THUMBLABEL
: /* Thumb label. */
4620 case C_THUMBSTATFUNC
:/* Thumb static function. */
4623 case C_DWARF
: /* A label in a dwarf section. */
4624 case C_INFO
: /* A label in a comment section. */
4626 case C_LABEL
: /* Label. */
4627 if (src
->u
.syment
.n_scnum
== N_DEBUG
)
4628 dst
->symbol
.flags
= BSF_DEBUGGING
;
4630 dst
->symbol
.flags
= BSF_LOCAL
;
4632 /* Base the value as an index from the base of the
4633 section, if there is one. */
4634 if (dst
->symbol
.section
)
4636 #if defined COFF_WITH_PE
4637 /* PE sets the symbol to a value relative to the
4638 start of the section. */
4639 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4641 dst
->symbol
.value
= (src
->u
.syment
.n_value
4642 - dst
->symbol
.section
->vma
);
4646 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4649 case C_MOS
: /* Member of structure. */
4650 case C_EOS
: /* End of structure. */
4651 case C_REGPARM
: /* Register parameter. */
4652 case C_REG
: /* register variable. */
4653 /* C_AUTOARG conflicts with TI COFF C_UEXT. */
4654 case C_TPDEF
: /* Type definition. */
4656 case C_AUTO
: /* Automatic variable. */
4657 case C_FIELD
: /* Bit field. */
4658 case C_ENTAG
: /* Enumeration tag. */
4659 case C_MOE
: /* Member of enumeration. */
4660 case C_MOU
: /* Member of union. */
4661 case C_UNTAG
: /* Union tag. */
4662 dst
->symbol
.flags
= BSF_DEBUGGING
;
4663 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4666 case C_FILE
: /* File name. */
4667 case C_STRTAG
: /* Structure tag. */
4684 dst
->symbol
.flags
= BSF_DEBUGGING
;
4685 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4689 case C_BINCL
: /* Beginning of include file. */
4690 case C_EINCL
: /* Ending of include file. */
4691 /* The value is actually a pointer into the line numbers
4692 of the file. We locate the line number entry, and
4693 set the section to the section which contains it, and
4694 the value to the index in that section. */
4698 dst
->symbol
.flags
= BSF_DEBUGGING
;
4699 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4700 if (sec
->line_filepos
<= (file_ptr
) src
->u
.syment
.n_value
4701 && ((file_ptr
) (sec
->line_filepos
4702 + sec
->lineno_count
* bfd_coff_linesz (abfd
))
4703 > (file_ptr
) src
->u
.syment
.n_value
))
4706 dst
->symbol
.value
= 0;
4709 dst
->symbol
.section
= sec
;
4710 dst
->symbol
.value
= ((src
->u
.syment
.n_value
4711 - sec
->line_filepos
)
4712 / bfd_coff_linesz (abfd
));
4719 dst
->symbol
.flags
= BSF_DEBUGGING
;
4721 /* The value is actually a symbol index. Save a pointer
4722 to the symbol instead of the index. FIXME: This
4723 should use a union. */
4724 src
->u
.syment
.n_value
=
4725 (long) (intptr_t) (native_symbols
+ src
->u
.syment
.n_value
);
4726 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4731 case C_BLOCK
: /* ".bb" or ".eb". */
4732 case C_FCN
: /* ".bf" or ".ef" (or PE ".lf"). */
4733 case C_EFCN
: /* Physical end of function. */
4734 #if defined COFF_WITH_PE
4735 /* PE sets the symbol to a value relative to the start
4737 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4738 if (strcmp (dst
->symbol
.name
, ".bf") != 0)
4740 /* PE uses funny values for .ef and .lf; don't
4742 dst
->symbol
.flags
= BSF_DEBUGGING
;
4745 dst
->symbol
.flags
= BSF_DEBUGGING
| BSF_DEBUGGING_RELOC
;
4747 /* Base the value as an index from the base of the
4749 dst
->symbol
.flags
= BSF_LOCAL
;
4750 dst
->symbol
.value
= (src
->u
.syment
.n_value
4751 - dst
->symbol
.section
->vma
);
4755 case C_STATLAB
: /* Static load time label. */
4756 dst
->symbol
.value
= src
->u
.syment
.n_value
;
4757 dst
->symbol
.flags
= BSF_GLOBAL
;
4761 /* PE DLLs sometimes have zeroed out symbols for some
4762 reason. Just ignore them without a warning. */
4763 if (src
->u
.syment
.n_type
== 0
4764 && src
->u
.syment
.n_value
== 0
4765 && src
->u
.syment
.n_scnum
== 0)
4768 /* XCOFF specific: deleted entry. */
4769 if (src
->u
.syment
.n_value
== C_NULL_VALUE
)
4773 case C_EXTDEF
: /* External definition. */
4774 case C_ULABEL
: /* Undefined label. */
4775 case C_USTATIC
: /* Undefined static. */
4776 #ifndef COFF_WITH_PE
4777 /* C_LINE in regular coff is 0x68. NT has taken over this storage
4778 class to represent a section symbol. */
4779 case C_LINE
: /* line # reformatted as symbol table entry. */
4780 /* NT uses 0x67 for a weak symbol, not C_ALIAS. */
4781 case C_ALIAS
: /* Duplicate tag. */
4783 /* New storage classes for TI COFF. */
4785 case C_UEXT
: /* Tentative external definition. */
4787 case C_EXTLAB
: /* External load time label. */
4790 /* xgettext:c-format */
4791 (_("%pB: unrecognized storage class %d for %s symbol `%s'"),
4792 abfd
, src
->u
.syment
.n_sclass
,
4793 dst
->symbol
.section
->name
, dst
->symbol
.name
);
4796 case C_HIDDEN
: /* Ext symbol in dmert public lib. */
4797 /* PR 20722: These symbols can also be generated by
4798 building DLLs with --gc-sections enabled. */
4799 dst
->symbol
.flags
= BSF_DEBUGGING
;
4800 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
4805 dst
->symbol
.udata
.i
= 0;
4808 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
4810 number_of_symbols
++;
4814 obj_symbols (abfd
) = cached_area
;
4815 obj_raw_syments (abfd
) = native_symbols
;
4817 abfd
->symcount
= number_of_symbols
;
4818 obj_convert (abfd
) = table_ptr
;
4819 /* Slurp the line tables for each section too. */
4826 if (! coff_slurp_line_table (abfd
, p
))
4835 /* Classify a COFF symbol. A couple of targets have globally visible
4836 symbols which are not class C_EXT, and this handles those. It also
4837 recognizes some special PE cases. */
4839 static enum coff_symbol_classification
4840 coff_classify_symbol (bfd
*abfd
,
4841 struct internal_syment
*syment
)
4843 /* FIXME: This partially duplicates the switch in
4844 coff_slurp_symbol_table. */
4845 switch (syment
->n_sclass
)
4851 case C_THUMBEXTFUNC
:
4859 if (syment
->n_scnum
== 0)
4861 if (syment
->n_value
== 0)
4862 return COFF_SYMBOL_UNDEFINED
;
4864 return COFF_SYMBOL_COMMON
;
4866 return COFF_SYMBOL_GLOBAL
;
4873 if (syment
->n_sclass
== C_STAT
)
4875 if (syment
->n_scnum
== 0)
4876 /* The Microsoft compiler sometimes generates these if a
4877 small static function is inlined every time it is used.
4878 The function is discarded, but the symbol table entry
4880 return COFF_SYMBOL_LOCAL
;
4882 #ifdef STRICT_PE_FORMAT
4883 /* This is correct for Microsoft generated objects, but it
4884 breaks gas generated objects. */
4885 if (syment
->n_value
== 0)
4889 char buf
[SYMNMLEN
+ 1];
4891 name
= _bfd_coff_internal_syment_name (abfd
, syment
, buf
)
4892 sec
= coff_section_from_bfd_index (abfd
, syment
->n_scnum
);
4893 if (sec
!= NULL
&& name
!= NULL
4894 && (strcmp (bfd_section_name (sec
), name
) == 0))
4895 return COFF_SYMBOL_PE_SECTION
;
4899 return COFF_SYMBOL_LOCAL
;
4902 if (syment
->n_sclass
== C_SECTION
)
4904 /* In some cases in a DLL generated by the Microsoft linker, the
4905 n_value field will contain garbage. FIXME: This should
4906 probably be handled by the swapping function instead. */
4907 syment
->n_value
= 0;
4908 if (syment
->n_scnum
== 0)
4909 return COFF_SYMBOL_UNDEFINED
;
4910 return COFF_SYMBOL_PE_SECTION
;
4912 #endif /* COFF_WITH_PE */
4914 /* If it is not a global symbol, we presume it is a local symbol. */
4915 if (syment
->n_scnum
== 0)
4917 char buf
[SYMNMLEN
+ 1];
4920 /* xgettext:c-format */
4921 (_("warning: %pB: local symbol `%s' has no section"),
4922 abfd
, _bfd_coff_internal_syment_name (abfd
, syment
, buf
));
4925 return COFF_SYMBOL_LOCAL
;
4932 Coff relocations are easily transformed into the internal BFD form
4935 Reading a coff relocation table is done in the following stages:
4937 o Read the entire coff relocation table into memory.
4939 o Process each relocation in turn; first swap it from the
4940 external to the internal form.
4942 o Turn the symbol referenced in the relocation's symbol index
4943 into a pointer into the canonical symbol table.
4944 This table is the same as the one returned by a call to
4945 @code{bfd_canonicalize_symtab}. The back end will call that
4946 routine and save the result if a canonicalization hasn't been done.
4948 o The reloc index is turned into a pointer to a howto
4949 structure, in a back end specific way. For instance, the 386
4950 uses the @code{r_type} to directly produce an index
4951 into a howto table vector.
4955 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
4957 coff_symbol_type *coffsym = NULL; \
4959 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
4960 coffsym = (obj_symbols (abfd) \
4961 + (cache_ptr->sym_ptr_ptr - symbols)); \
4963 coffsym = coff_symbol_from (ptr); \
4964 if (coffsym != NULL \
4965 && coffsym->native->is_sym \
4966 && coffsym->native->u.syment.n_scnum == 0) \
4967 cache_ptr->addend = 0; \
4968 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
4969 && ptr->section != NULL) \
4970 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
4972 cache_ptr->addend = 0; \
4977 coff_slurp_reloc_table (bfd
* abfd
, sec_ptr asect
, asymbol
** symbols
)
4979 RELOC
*native_relocs
;
4980 arelent
*reloc_cache
;
4985 if (asect
->relocation
)
4987 if (asect
->reloc_count
== 0)
4989 if (asect
->flags
& SEC_CONSTRUCTOR
)
4991 if (!coff_slurp_symbol_table (abfd
))
4994 native_relocs
= (RELOC
*) buy_and_read (abfd
, asect
->rel_filepos
,
4996 bfd_coff_relsz (abfd
));
4997 if (_bfd_mul_overflow (asect
->reloc_count
, sizeof (arelent
), &amt
))
4999 bfd_set_error (bfd_error_file_too_big
);
5002 reloc_cache
= (arelent
*) bfd_alloc (abfd
, amt
);
5003 if (reloc_cache
== NULL
|| native_relocs
== NULL
)
5006 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
5008 struct internal_reloc dst
;
5009 struct external_reloc
*src
;
5010 #ifndef RELOC_PROCESSING
5014 cache_ptr
= reloc_cache
+ idx
;
5015 src
= native_relocs
+ idx
;
5018 coff_swap_reloc_in (abfd
, src
, &dst
);
5020 #ifdef RELOC_PROCESSING
5021 RELOC_PROCESSING (cache_ptr
, &dst
, symbols
, abfd
, asect
);
5023 cache_ptr
->address
= dst
.r_vaddr
;
5025 if (dst
.r_symndx
!= -1 && symbols
!= NULL
)
5027 if (dst
.r_symndx
< 0 || dst
.r_symndx
>= obj_conv_table_size (abfd
))
5030 /* xgettext:c-format */
5031 (_("%pB: warning: illegal symbol index %ld in relocs"),
5032 abfd
, dst
.r_symndx
);
5033 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5038 cache_ptr
->sym_ptr_ptr
= (symbols
5039 + obj_convert (abfd
)[dst
.r_symndx
]);
5040 ptr
= *(cache_ptr
->sym_ptr_ptr
);
5045 cache_ptr
->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
5049 /* The symbols definitions that we have read in have been
5050 relocated as if their sections started at 0. But the offsets
5051 refering to the symbols in the raw data have not been
5052 modified, so we have to have a negative addend to compensate.
5054 Note that symbols which used to be common must be left alone. */
5056 /* Calculate any reloc addend by looking at the symbol. */
5057 CALC_ADDEND (abfd
, ptr
, dst
, cache_ptr
);
5060 cache_ptr
->address
-= asect
->vma
;
5061 /* !! cache_ptr->section = NULL;*/
5063 /* Fill in the cache_ptr->howto field from dst.r_type. */
5064 RTYPE2HOWTO (cache_ptr
, &dst
);
5065 #endif /* RELOC_PROCESSING */
5067 if (cache_ptr
->howto
== NULL
)
5070 /* xgettext:c-format */
5071 (_("%pB: illegal relocation type %d at address %#" PRIx64
),
5072 abfd
, dst
.r_type
, (uint64_t) dst
.r_vaddr
);
5073 bfd_set_error (bfd_error_bad_value
);
5078 asect
->relocation
= reloc_cache
;
5082 #ifndef coff_rtype_to_howto
5085 /* Get the howto structure for a reloc. This is only used if the file
5086 including this one defines coff_relocate_section to be
5087 _bfd_coff_generic_relocate_section, so it is OK if it does not
5088 always work. It is the responsibility of the including file to
5089 make sure it is reasonable if it is needed. */
5091 static reloc_howto_type
*
5092 coff_rtype_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
5093 asection
*sec ATTRIBUTE_UNUSED
,
5094 struct internal_reloc
*rel ATTRIBUTE_UNUSED
,
5095 struct coff_link_hash_entry
*h ATTRIBUTE_UNUSED
,
5096 struct internal_syment
*sym ATTRIBUTE_UNUSED
,
5097 bfd_vma
*addendp ATTRIBUTE_UNUSED
)
5101 genrel
.howto
= NULL
;
5102 RTYPE2HOWTO (&genrel
, rel
);
5103 return genrel
.howto
;
5106 #else /* ! defined (RTYPE2HOWTO) */
5108 #define coff_rtype_to_howto NULL
5110 #endif /* ! defined (RTYPE2HOWTO) */
5111 #endif /* ! defined (coff_rtype_to_howto) */
5113 /* This is stupid. This function should be a boolean predicate. */
5116 coff_canonicalize_reloc (bfd
* abfd
,
5121 arelent
*tblptr
= section
->relocation
;
5122 unsigned int count
= 0;
5124 if (section
->flags
& SEC_CONSTRUCTOR
)
5126 /* This section has relocs made up by us, they are not in the
5127 file, so take them out of their chain and place them into
5128 the data area provided. */
5129 arelent_chain
*chain
= section
->constructor_chain
;
5131 for (count
= 0; count
< section
->reloc_count
; count
++)
5133 *relptr
++ = &chain
->relent
;
5134 chain
= chain
->next
;
5139 if (! coff_slurp_reloc_table (abfd
, section
, symbols
))
5142 tblptr
= section
->relocation
;
5144 for (; count
++ < section
->reloc_count
;)
5145 *relptr
++ = tblptr
++;
5148 return section
->reloc_count
;
5151 #ifndef coff_set_reloc
5152 #define coff_set_reloc _bfd_generic_set_reloc
5155 #ifndef coff_reloc16_estimate
5156 #define coff_reloc16_estimate dummy_reloc16_estimate
5159 dummy_reloc16_estimate (bfd
*abfd ATTRIBUTE_UNUSED
,
5160 asection
*input_section ATTRIBUTE_UNUSED
,
5161 arelent
*reloc ATTRIBUTE_UNUSED
,
5162 unsigned int shrink ATTRIBUTE_UNUSED
,
5163 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
)
5171 #ifndef coff_reloc16_extra_cases
5173 #define coff_reloc16_extra_cases dummy_reloc16_extra_cases
5175 /* This works even if abort is not declared in any header file. */
5178 dummy_reloc16_extra_cases (bfd
*abfd ATTRIBUTE_UNUSED
,
5179 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
5180 struct bfd_link_order
*link_order ATTRIBUTE_UNUSED
,
5181 arelent
*reloc ATTRIBUTE_UNUSED
,
5182 bfd_byte
*data ATTRIBUTE_UNUSED
,
5183 unsigned int *src_ptr ATTRIBUTE_UNUSED
,
5184 unsigned int *dst_ptr ATTRIBUTE_UNUSED
)
5190 /* If coff_relocate_section is defined, we can use the optimized COFF
5191 backend linker. Otherwise we must continue to use the old linker. */
5193 #ifdef coff_relocate_section
5195 #ifndef coff_bfd_link_hash_table_create
5196 #define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
5198 #ifndef coff_bfd_link_add_symbols
5199 #define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
5201 #ifndef coff_bfd_final_link
5202 #define coff_bfd_final_link _bfd_coff_final_link
5205 #else /* ! defined (coff_relocate_section) */
5207 #define coff_relocate_section NULL
5208 #ifndef coff_bfd_link_hash_table_create
5209 #define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
5211 #ifndef coff_bfd_link_add_symbols
5212 #define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
5214 #define coff_bfd_final_link _bfd_generic_final_link
5216 #endif /* ! defined (coff_relocate_section) */
5218 #define coff_bfd_link_just_syms _bfd_generic_link_just_syms
5219 #define coff_bfd_copy_link_hash_symbol_type \
5220 _bfd_generic_copy_link_hash_symbol_type
5221 #define coff_bfd_link_split_section _bfd_generic_link_split_section
5223 #define coff_bfd_link_check_relocs _bfd_generic_link_check_relocs
5225 #ifndef coff_start_final_link
5226 #define coff_start_final_link NULL
5229 #ifndef coff_adjust_symndx
5230 #define coff_adjust_symndx NULL
5233 #ifndef coff_link_add_one_symbol
5234 #define coff_link_add_one_symbol _bfd_generic_link_add_one_symbol
5237 #ifndef coff_link_output_has_begun
5240 coff_link_output_has_begun (bfd
* abfd
,
5241 struct coff_final_link_info
* info ATTRIBUTE_UNUSED
)
5243 return abfd
->output_has_begun
;
5247 #ifndef coff_final_link_postscript
5250 coff_final_link_postscript (bfd
* abfd ATTRIBUTE_UNUSED
,
5251 struct coff_final_link_info
* pfinfo ATTRIBUTE_UNUSED
)
5257 #ifndef coff_SWAP_aux_in
5258 #define coff_SWAP_aux_in coff_swap_aux_in
5260 #ifndef coff_SWAP_sym_in
5261 #define coff_SWAP_sym_in coff_swap_sym_in
5263 #ifndef coff_SWAP_lineno_in
5264 #define coff_SWAP_lineno_in coff_swap_lineno_in
5266 #ifndef coff_SWAP_aux_out
5267 #define coff_SWAP_aux_out coff_swap_aux_out
5269 #ifndef coff_SWAP_sym_out
5270 #define coff_SWAP_sym_out coff_swap_sym_out
5272 #ifndef coff_SWAP_lineno_out
5273 #define coff_SWAP_lineno_out coff_swap_lineno_out
5275 #ifndef coff_SWAP_reloc_out
5276 #define coff_SWAP_reloc_out coff_swap_reloc_out
5278 #ifndef coff_SWAP_filehdr_out
5279 #define coff_SWAP_filehdr_out coff_swap_filehdr_out
5281 #ifndef coff_SWAP_aouthdr_out
5282 #define coff_SWAP_aouthdr_out coff_swap_aouthdr_out
5284 #ifndef coff_SWAP_scnhdr_out
5285 #define coff_SWAP_scnhdr_out coff_swap_scnhdr_out
5287 #ifndef coff_SWAP_reloc_in
5288 #define coff_SWAP_reloc_in coff_swap_reloc_in
5290 #ifndef coff_SWAP_filehdr_in
5291 #define coff_SWAP_filehdr_in coff_swap_filehdr_in
5293 #ifndef coff_SWAP_aouthdr_in
5294 #define coff_SWAP_aouthdr_in coff_swap_aouthdr_in
5296 #ifndef coff_SWAP_scnhdr_in
5297 #define coff_SWAP_scnhdr_in coff_swap_scnhdr_in
5300 static bfd_coff_backend_data bfd_coff_std_swap_table ATTRIBUTE_UNUSED
=
5302 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5303 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5304 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5305 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5306 coff_SWAP_scnhdr_out
,
5307 FILHSZ
, AOUTSZ
, SCNHSZ
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5308 #ifdef COFF_LONG_FILENAMES
5313 COFF_DEFAULT_LONG_SECTION_NAMES
,
5314 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5315 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5320 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5326 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5327 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5328 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5329 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5330 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5331 coff_classify_symbol
, coff_compute_section_file_positions
,
5332 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5333 coff_adjust_symndx
, coff_link_add_one_symbol
,
5334 coff_link_output_has_begun
, coff_final_link_postscript
,
5339 /* COFF0 differs in file/section header size and relocation entry size. */
5341 static bfd_coff_backend_data ticoff0_swap_table
=
5343 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5344 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5345 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5346 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5347 coff_SWAP_scnhdr_out
,
5348 FILHSZ_V0
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ_V0
, LINESZ
, FILNMLEN
,
5349 #ifdef COFF_LONG_FILENAMES
5354 COFF_DEFAULT_LONG_SECTION_NAMES
,
5355 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5356 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5361 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5367 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5368 coff_SWAP_reloc_in
, ticoff0_bad_format_hook
, coff_set_arch_mach_hook
,
5369 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5370 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5371 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5372 coff_classify_symbol
, coff_compute_section_file_positions
,
5373 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5374 coff_adjust_symndx
, coff_link_add_one_symbol
,
5375 coff_link_output_has_begun
, coff_final_link_postscript
,
5381 /* COFF1 differs in section header size. */
5383 static bfd_coff_backend_data ticoff1_swap_table
=
5385 coff_SWAP_aux_in
, coff_SWAP_sym_in
, coff_SWAP_lineno_in
,
5386 coff_SWAP_aux_out
, coff_SWAP_sym_out
,
5387 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5388 coff_SWAP_filehdr_out
, coff_SWAP_aouthdr_out
,
5389 coff_SWAP_scnhdr_out
,
5390 FILHSZ
, AOUTSZ
, SCNHSZ_V01
, SYMESZ
, AUXESZ
, RELSZ
, LINESZ
, FILNMLEN
,
5391 #ifdef COFF_LONG_FILENAMES
5396 COFF_DEFAULT_LONG_SECTION_NAMES
,
5397 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5398 #ifdef COFF_FORCE_SYMBOLS_IN_STRINGS
5403 #ifdef COFF_DEBUG_STRING_WIDE_PREFIX
5409 coff_SWAP_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5410 coff_SWAP_reloc_in
, ticoff1_bad_format_hook
, coff_set_arch_mach_hook
,
5411 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5412 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5413 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5414 coff_classify_symbol
, coff_compute_section_file_positions
,
5415 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5416 coff_adjust_symndx
, coff_link_add_one_symbol
,
5417 coff_link_output_has_begun
, coff_final_link_postscript
,
5418 bfd_pe_print_pdata
/* huh */
5422 #ifdef COFF_WITH_PE_BIGOBJ
5423 /* The UID for bigobj files. */
5425 static const char header_bigobj_classid
[16] =
5427 0xC7, 0xA1, 0xBA, 0xD1,
5431 0xFA, 0xF6, 0x6A, 0xA4, 0xDC, 0xB8
5434 /* Swap routines. */
5437 coff_bigobj_swap_filehdr_in (bfd
* abfd
, void * src
, void * dst
)
5439 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_src
=
5440 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) src
;
5441 struct internal_filehdr
*filehdr_dst
= (struct internal_filehdr
*) dst
;
5443 filehdr_dst
->f_magic
= H_GET_16 (abfd
, filehdr_src
->Machine
);
5444 filehdr_dst
->f_nscns
= H_GET_32 (abfd
, filehdr_src
->NumberOfSections
);
5445 filehdr_dst
->f_timdat
= H_GET_32 (abfd
, filehdr_src
->TimeDateStamp
);
5446 filehdr_dst
->f_symptr
=
5447 GET_FILEHDR_SYMPTR (abfd
, filehdr_src
->PointerToSymbolTable
);
5448 filehdr_dst
->f_nsyms
= H_GET_32 (abfd
, filehdr_src
->NumberOfSymbols
);
5449 filehdr_dst
->f_opthdr
= 0;
5450 filehdr_dst
->f_flags
= 0;
5452 /* Check other magic numbers. */
5453 if (H_GET_16 (abfd
, filehdr_src
->Sig1
) != IMAGE_FILE_MACHINE_UNKNOWN
5454 || H_GET_16 (abfd
, filehdr_src
->Sig2
) != 0xffff
5455 || H_GET_16 (abfd
, filehdr_src
->Version
) != 2
5456 || memcmp (filehdr_src
->ClassID
, header_bigobj_classid
, 16) != 0)
5457 filehdr_dst
->f_opthdr
= 0xffff;
5459 /* Note that CLR metadata are ignored. */
5463 coff_bigobj_swap_filehdr_out (bfd
*abfd
, void * in
, void * out
)
5465 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*) in
;
5466 struct external_ANON_OBJECT_HEADER_BIGOBJ
*filehdr_out
=
5467 (struct external_ANON_OBJECT_HEADER_BIGOBJ
*) out
;
5469 memset (filehdr_out
, 0, sizeof (*filehdr_out
));
5471 H_PUT_16 (abfd
, IMAGE_FILE_MACHINE_UNKNOWN
, filehdr_out
->Sig1
);
5472 H_PUT_16 (abfd
, 0xffff, filehdr_out
->Sig2
);
5473 H_PUT_16 (abfd
, 2, filehdr_out
->Version
);
5474 memcpy (filehdr_out
->ClassID
, header_bigobj_classid
, 16);
5475 H_PUT_16 (abfd
, filehdr_in
->f_magic
, filehdr_out
->Machine
);
5476 H_PUT_32 (abfd
, filehdr_in
->f_nscns
, filehdr_out
->NumberOfSections
);
5477 H_PUT_32 (abfd
, filehdr_in
->f_timdat
, filehdr_out
->TimeDateStamp
);
5478 PUT_FILEHDR_SYMPTR (abfd
, filehdr_in
->f_symptr
,
5479 filehdr_out
->PointerToSymbolTable
);
5480 H_PUT_32 (abfd
, filehdr_in
->f_nsyms
, filehdr_out
->NumberOfSymbols
);
5482 return bfd_coff_filhsz (abfd
);
5486 coff_bigobj_swap_sym_in (bfd
* abfd
, void * ext1
, void * in1
)
5488 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) ext1
;
5489 struct internal_syment
*in
= (struct internal_syment
*) in1
;
5491 if (ext
->e
.e_name
[0] == 0)
5493 in
->_n
._n_n
._n_zeroes
= 0;
5494 in
->_n
._n_n
._n_offset
= H_GET_32 (abfd
, ext
->e
.e
.e_offset
);
5498 #if SYMNMLEN != E_SYMNMLEN
5499 #error we need to cope with truncating or extending SYMNMLEN
5501 memcpy (in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
5505 in
->n_value
= H_GET_32 (abfd
, ext
->e_value
);
5506 BFD_ASSERT (sizeof (in
->n_scnum
) >= 4);
5507 in
->n_scnum
= H_GET_32 (abfd
, ext
->e_scnum
);
5508 in
->n_type
= H_GET_16 (abfd
, ext
->e_type
);
5509 in
->n_sclass
= H_GET_8 (abfd
, ext
->e_sclass
);
5510 in
->n_numaux
= H_GET_8 (abfd
, ext
->e_numaux
);
5514 coff_bigobj_swap_sym_out (bfd
* abfd
, void * inp
, void * extp
)
5516 struct internal_syment
*in
= (struct internal_syment
*) inp
;
5517 SYMENT_BIGOBJ
*ext
= (SYMENT_BIGOBJ
*) extp
;
5519 if (in
->_n
._n_name
[0] == 0)
5521 H_PUT_32 (abfd
, 0, ext
->e
.e
.e_zeroes
);
5522 H_PUT_32 (abfd
, in
->_n
._n_n
._n_offset
, ext
->e
.e
.e_offset
);
5526 #if SYMNMLEN != E_SYMNMLEN
5527 #error we need to cope with truncating or extending SYMNMLEN
5529 memcpy (ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
5533 H_PUT_32 (abfd
, in
->n_value
, ext
->e_value
);
5534 H_PUT_32 (abfd
, in
->n_scnum
, ext
->e_scnum
);
5536 H_PUT_16 (abfd
, in
->n_type
, ext
->e_type
);
5537 H_PUT_8 (abfd
, in
->n_sclass
, ext
->e_sclass
);
5538 H_PUT_8 (abfd
, in
->n_numaux
, ext
->e_numaux
);
5540 return SYMESZ_BIGOBJ
;
5544 coff_bigobj_swap_aux_in (bfd
*abfd
,
5552 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) ext1
;
5553 union internal_auxent
*in
= (union internal_auxent
*) in1
;
5555 /* Make sure that all fields in the aux structure are
5557 memset (in
, 0, sizeof * in
);
5564 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
,
5565 numaux
* sizeof (AUXENT_BIGOBJ
));
5568 memcpy (in
->x_file
.x_fname
, ext
->File
.Name
, sizeof (ext
->File
.Name
));
5576 in
->x_scn
.x_scnlen
= H_GET_32 (abfd
, ext
->Section
.Length
);
5577 in
->x_scn
.x_nreloc
=
5578 H_GET_16 (abfd
, ext
->Section
.NumberOfRelocations
);
5579 in
->x_scn
.x_nlinno
=
5580 H_GET_16 (abfd
, ext
->Section
.NumberOfLinenumbers
);
5581 in
->x_scn
.x_checksum
= H_GET_32 (abfd
, ext
->Section
.Checksum
);
5582 in
->x_scn
.x_associated
= H_GET_16 (abfd
, ext
->Section
.Number
)
5583 | (H_GET_16 (abfd
, ext
->Section
.HighNumber
) << 16);
5584 in
->x_scn
.x_comdat
= H_GET_8 (abfd
, ext
->Section
.Selection
);
5590 in
->x_sym
.x_tagndx
.l
= H_GET_32 (abfd
, ext
->Sym
.WeakDefaultSymIndex
);
5591 /* Characteristics is ignored. */
5597 coff_bigobj_swap_aux_out (bfd
* abfd
,
5601 int indx ATTRIBUTE_UNUSED
,
5602 int numaux ATTRIBUTE_UNUSED
,
5605 union internal_auxent
* in
= (union internal_auxent
*) inp
;
5606 AUXENT_BIGOBJ
*ext
= (AUXENT_BIGOBJ
*) extp
;
5608 memset (ext
, 0, AUXESZ
);
5613 memcpy (ext
->File
.Name
, in
->x_file
.x_fname
, sizeof (ext
->File
.Name
));
5622 H_PUT_32 (abfd
, in
->x_scn
.x_scnlen
, ext
->Section
.Length
);
5623 H_PUT_16 (abfd
, in
->x_scn
.x_nreloc
,
5624 ext
->Section
.NumberOfRelocations
);
5625 H_PUT_16 (abfd
, in
->x_scn
.x_nlinno
,
5626 ext
->Section
.NumberOfLinenumbers
);
5627 H_PUT_32 (abfd
, in
->x_scn
.x_checksum
, ext
->Section
.Checksum
);
5628 H_PUT_16 (abfd
, in
->x_scn
.x_associated
& 0xffff,
5629 ext
->Section
.Number
);
5630 H_PUT_16 (abfd
, (in
->x_scn
.x_associated
>> 16),
5631 ext
->Section
.HighNumber
);
5632 H_PUT_8 (abfd
, in
->x_scn
.x_comdat
, ext
->Section
.Selection
);
5638 H_PUT_32 (abfd
, in
->x_sym
.x_tagndx
.l
, ext
->Sym
.WeakDefaultSymIndex
);
5639 H_PUT_32 (abfd
, 1, ext
->Sym
.WeakSearchType
);
5644 static bfd_coff_backend_data bigobj_swap_table
=
5646 coff_bigobj_swap_aux_in
, coff_bigobj_swap_sym_in
, coff_SWAP_lineno_in
,
5647 coff_bigobj_swap_aux_out
, coff_bigobj_swap_sym_out
,
5648 coff_SWAP_lineno_out
, coff_SWAP_reloc_out
,
5649 coff_bigobj_swap_filehdr_out
, coff_SWAP_aouthdr_out
,
5650 coff_SWAP_scnhdr_out
,
5651 FILHSZ_BIGOBJ
, AOUTSZ
, SCNHSZ
, SYMESZ_BIGOBJ
, AUXESZ_BIGOBJ
,
5652 RELSZ
, LINESZ
, FILNMLEN_BIGOBJ
,
5654 COFF_DEFAULT_LONG_SECTION_NAMES
,
5655 COFF_DEFAULT_SECTION_ALIGNMENT_POWER
,
5659 coff_bigobj_swap_filehdr_in
, coff_SWAP_aouthdr_in
, coff_SWAP_scnhdr_in
,
5660 coff_SWAP_reloc_in
, coff_bad_format_hook
, coff_set_arch_mach_hook
,
5661 coff_mkobject_hook
, styp_to_sec_flags
, coff_set_alignment_hook
,
5662 coff_slurp_symbol_table
, symname_in_debug_hook
, coff_pointerize_aux_hook
,
5663 coff_print_aux
, coff_reloc16_extra_cases
, coff_reloc16_estimate
,
5664 coff_classify_symbol
, coff_compute_section_file_positions
,
5665 coff_start_final_link
, coff_relocate_section
, coff_rtype_to_howto
,
5666 coff_adjust_symndx
, coff_link_add_one_symbol
,
5667 coff_link_output_has_begun
, coff_final_link_postscript
,
5668 bfd_pe_print_pdata
/* huh */
5671 #endif /* COFF_WITH_PE_BIGOBJ */
5673 #ifndef coff_close_and_cleanup
5674 #define coff_close_and_cleanup _bfd_coff_close_and_cleanup
5677 #ifndef coff_bfd_free_cached_info
5678 #define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
5681 #ifndef coff_get_section_contents
5682 #define coff_get_section_contents _bfd_generic_get_section_contents
5685 #ifndef coff_bfd_copy_private_symbol_data
5686 #define coff_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
5689 #ifndef coff_bfd_copy_private_header_data
5690 #define coff_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
5693 #ifndef coff_bfd_copy_private_section_data
5694 #define coff_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data
5697 #ifndef coff_bfd_copy_private_bfd_data
5698 #define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
5701 #ifndef coff_bfd_merge_private_bfd_data
5702 #define coff_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
5705 #ifndef coff_bfd_set_private_flags
5706 #define coff_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
5709 #ifndef coff_bfd_print_private_bfd_data
5710 #define coff_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
5713 #ifndef coff_bfd_is_local_label_name
5714 #define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
5717 #ifndef coff_bfd_is_target_special_symbol
5718 #define coff_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
5721 #ifndef coff_read_minisymbols
5722 #define coff_read_minisymbols _bfd_generic_read_minisymbols
5725 #ifndef coff_minisymbol_to_symbol
5726 #define coff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
5729 /* The reloc lookup routine must be supplied by each individual COFF
5731 #ifndef coff_bfd_reloc_type_lookup
5732 #define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5734 #ifndef coff_bfd_reloc_name_lookup
5735 #define coff_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5738 #ifndef coff_bfd_get_relocated_section_contents
5739 #define coff_bfd_get_relocated_section_contents \
5740 bfd_generic_get_relocated_section_contents
5743 #ifndef coff_bfd_relax_section
5744 #define coff_bfd_relax_section bfd_generic_relax_section
5747 #ifndef coff_bfd_gc_sections
5748 #define coff_bfd_gc_sections bfd_coff_gc_sections
5751 #ifndef coff_bfd_lookup_section_flags
5752 #define coff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
5755 #ifndef coff_bfd_merge_sections
5756 #define coff_bfd_merge_sections bfd_generic_merge_sections
5759 #ifndef coff_bfd_is_group_section
5760 #define coff_bfd_is_group_section bfd_generic_is_group_section
5763 #ifndef coff_bfd_group_name
5764 #define coff_bfd_group_name bfd_coff_group_name
5767 #ifndef coff_bfd_discard_group
5768 #define coff_bfd_discard_group bfd_generic_discard_group
5771 #ifndef coff_section_already_linked
5772 #define coff_section_already_linked \
5773 _bfd_coff_section_already_linked
5776 #ifndef coff_bfd_define_common_symbol
5777 #define coff_bfd_define_common_symbol bfd_generic_define_common_symbol
5780 #ifndef coff_bfd_link_hide_symbol
5781 #define coff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
5784 #ifndef coff_bfd_define_start_stop
5785 #define coff_bfd_define_start_stop bfd_generic_define_start_stop
5788 #define CREATE_BIG_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5789 const bfd_target VAR = \
5792 bfd_target_coff_flavour, \
5793 BFD_ENDIAN_BIG, /* Data byte order is big. */ \
5794 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5795 /* object flags */ \
5796 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5797 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5798 /* section flags */ \
5799 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5800 UNDER, /* Leading symbol underscore. */ \
5801 '/', /* AR_pad_char. */ \
5802 15, /* AR_max_namelen. */ \
5803 0, /* match priority. */ \
5805 /* Data conversion functions. */ \
5806 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5807 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5808 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5810 /* Header conversion functions. */ \
5811 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5812 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5813 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5815 { /* bfd_check_format. */ \
5816 _bfd_dummy_target, \
5818 bfd_generic_archive_p, \
5821 { /* bfd_set_format. */ \
5822 _bfd_bool_bfd_false_error, \
5824 _bfd_generic_mkarchive, \
5825 _bfd_bool_bfd_false_error \
5827 { /* bfd_write_contents. */ \
5828 _bfd_bool_bfd_false_error, \
5829 coff_write_object_contents, \
5830 _bfd_write_archive_contents, \
5831 _bfd_bool_bfd_false_error \
5834 BFD_JUMP_TABLE_GENERIC (coff), \
5835 BFD_JUMP_TABLE_COPY (coff), \
5836 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5837 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5838 BFD_JUMP_TABLE_SYMBOLS (coff), \
5839 BFD_JUMP_TABLE_RELOCS (coff), \
5840 BFD_JUMP_TABLE_WRITE (coff), \
5841 BFD_JUMP_TABLE_LINK (coff), \
5842 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5849 #define CREATE_BIGHDR_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5850 const bfd_target VAR = \
5853 bfd_target_coff_flavour, \
5854 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5855 BFD_ENDIAN_BIG, /* Header byte order is big. */ \
5856 /* object flags */ \
5857 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5858 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5859 /* section flags */ \
5860 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5861 UNDER, /* Leading symbol underscore. */ \
5862 '/', /* AR_pad_char. */ \
5863 15, /* AR_max_namelen. */ \
5864 0, /* match priority. */ \
5866 /* Data conversion functions. */ \
5867 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5868 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5869 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5871 /* Header conversion functions. */ \
5872 bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
5873 bfd_getb32, bfd_getb_signed_32, bfd_putb32, \
5874 bfd_getb16, bfd_getb_signed_16, bfd_putb16, \
5876 { /* bfd_check_format. */ \
5877 _bfd_dummy_target, \
5879 bfd_generic_archive_p, \
5882 { /* bfd_set_format. */ \
5883 _bfd_bool_bfd_false_error, \
5885 _bfd_generic_mkarchive, \
5886 _bfd_bool_bfd_false_error \
5888 { /* bfd_write_contents. */ \
5889 _bfd_bool_bfd_false_error, \
5890 coff_write_object_contents, \
5891 _bfd_write_archive_contents, \
5892 _bfd_bool_bfd_false_error \
5895 BFD_JUMP_TABLE_GENERIC (coff), \
5896 BFD_JUMP_TABLE_COPY (coff), \
5897 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5898 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5899 BFD_JUMP_TABLE_SYMBOLS (coff), \
5900 BFD_JUMP_TABLE_RELOCS (coff), \
5901 BFD_JUMP_TABLE_WRITE (coff), \
5902 BFD_JUMP_TABLE_LINK (coff), \
5903 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \
5910 #define CREATE_LITTLE_COFF_TARGET_VEC(VAR, NAME, EXTRA_O_FLAGS, EXTRA_S_FLAGS, UNDER, ALTERNATIVE, SWAP_TABLE) \
5911 const bfd_target VAR = \
5914 bfd_target_coff_flavour, \
5915 BFD_ENDIAN_LITTLE, /* Data byte order is little. */ \
5916 BFD_ENDIAN_LITTLE, /* Header byte order is little. */ \
5917 /* object flags */ \
5918 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | \
5919 HAS_SYMS | HAS_LOCALS | WP_TEXT | EXTRA_O_FLAGS), \
5920 /* section flags */ \
5921 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | EXTRA_S_FLAGS),\
5922 UNDER, /* Leading symbol underscore. */ \
5923 '/', /* AR_pad_char. */ \
5924 15, /* AR_max_namelen. */ \
5925 0, /* match priority. */ \
5927 /* Data conversion functions. */ \
5928 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5929 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5930 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5931 /* Header conversion functions. */ \
5932 bfd_getl64, bfd_getl_signed_64, bfd_putl64, \
5933 bfd_getl32, bfd_getl_signed_32, bfd_putl32, \
5934 bfd_getl16, bfd_getl_signed_16, bfd_putl16, \
5936 { /* bfd_check_format. */ \
5937 _bfd_dummy_target, \
5939 bfd_generic_archive_p, \
5942 { /* bfd_set_format. */ \
5943 _bfd_bool_bfd_false_error, \
5945 _bfd_generic_mkarchive, \
5946 _bfd_bool_bfd_false_error \
5948 { /* bfd_write_contents. */ \
5949 _bfd_bool_bfd_false_error, \
5950 coff_write_object_contents, \
5951 _bfd_write_archive_contents, \
5952 _bfd_bool_bfd_false_error \
5955 BFD_JUMP_TABLE_GENERIC (coff), \
5956 BFD_JUMP_TABLE_COPY (coff), \
5957 BFD_JUMP_TABLE_CORE (_bfd_nocore), \
5958 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), \
5959 BFD_JUMP_TABLE_SYMBOLS (coff), \
5960 BFD_JUMP_TABLE_RELOCS (coff), \
5961 BFD_JUMP_TABLE_WRITE (coff), \
5962 BFD_JUMP_TABLE_LINK (coff), \
5963 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), \